CONSTANT EFFORT SUPPORTS

Transcription

1 CONSTANT EFFORT SUPPORTS Our current range of Constant Effort Supports is the latest step a contuous development programme which began 1950 with the Con-Ten support. The range has been designed takg to account all the knowledge gaed sce these early days. This know-how has determed the optimum geometrical arrangement to ensure that, theoretically, the deviation of supportg effort is kept to a mimum. Fewer friction pots ensure this applies practice as well as theory. The sgle most critical factor affectg constancy is the sprg, and we at Pipe Supports have made great efforts to design a range of sprgs that will deliver the performance our customers demand. In addition, the range has been designed to cater for the ever-creasg space limitations on offshore rigs, power stations and other process plants. Other criteria that have been carefully considered, both durg the conceptual and practical design stages, are the effects of ageg on the sprg, the environment that hangers have to work, the particular needs of the sophisticated pipework company their requirement for balancg les durg erection, and the capability to provide simple site adjustment to overcome changes or problems that occur late the contract period. Our range of Constant Effort Supports is the result, which we are proud to present this catalogue. APPLICATION Constant Effort Supports are used to support pipework or equipment with an essentially constant supportg effort durg what may be large vertical movement. Where the change supportg effort which occurs when usg variable effort supports is unacceptable, or where the amount of travel provided by variable effort supports is sufficient, constant effort supports should be specified. High temperature steam les power stations and flow les on oil production platforms are examples of situations where large relative movement between pipg and the supportg structure make the use of Constant Effort Supports essential. RANGE Our standard range of Constant Effort Supports caters for loads up to above 50 tons with movement provided up to 30. FRAME SIZE AND SPRING SIZE The support designation gives the support frame size and sprg size: C5 17 FRAME SIZE C5 SPRING SIZE 17 Many dimensions are common for a given frame size. SUPPORT TYPES We offer eleven standard support types: HS Horizontal type sgle pot suspension HD Horizontal type double pot suspension VS Vertical type sgle pot suspension VD Vertical type double pot suspension Vertical verted type sgle pot suspension Vertical verted type double pot suspension HBM Horizontal base mounted HBMCS Horizontal base mounted compression seat Vertical base mounted CS Vertical base mounted compression seat VIBM Vertical verted base mounted Details of Vertical verted tandem type (type VIT) are available on request. SUSPENSION STYLES For the suspended types, five styles of top suspension are available, namely TS1, TS2, TS3, TS4 and TS5. Constant Effort Supports Type HD Type 141

2 CONSTANT EFFORT SUPPORTS STANDARD FEATURES 1. Compactness of units. Installed heights and overall sizes designed to the mimum. 2. Travel Indicator. Enables the behaviour of the pipework to be monitored, dicatg that pipework movement is as designed and callg attention to any system irregularities. 4. Load Adjustment Facility. A mimum of +/-20% site load adjustment is available without alterg the travel provided. The load adjuster is conveniently situated for site use. In cases where greater load adjustment is required this can be supplied, by prior agreement. LOAD ADJUSTER LOCATION 3. Lever Rotation Indicator. The support frames corporate a wdow. The position of the lever rotation dicator with the wdow provides a visual dication of the position of the lever, and therefore confirmation that the support is takg load correctly. If the lever rotation dicator is away from the extremities of the wdow, the support is takg load. If the dicator is at the back of the wdow, the support may be off load; if it is at the front, the support may be overloaded. If the dicator is at either extremity, adjustment of the support travel position and/or load adjustment is required. The lever rotation dicator provides quick visual confirmation that the support is on load ; this assessment can be made from a considerable distance. 5. Ultimate Stop. The construction of the ma frame is such that the case of overload the lever arm will be arrested prior to the sprg becomg solid. ULTIMATE STOP 6. Infitely Variable Lockg/Balancg Device. Every unit is sent to site locked the D.T.S. (Despatched to Site) position shown on the general arrangement drawg for the contract. The lockg mechanism comprises two lockg rods which run the full length of the sprg housg. The hanger is locked and becomes a rigid support by restrag the sprg compression plate as shown the illustration followg. The lockg device beg constructed from two threaded members operates an fitely variable number of positions and is securely attached to the support for future re-use, regardless of pipework position. For details on how to use the lockg/balancg device see section headed Installation and Erection. 142

3 CONSTANT EFFORT SUPPORTS STANDARD FEATURES 8. Beargs. The beargs used are PTFE dry beargs and are enclosed to stop the gress of dirt and dust. No matenance or lubrication is required. 9. Name Plate. Each support is supplied with a deeply engraved nameplate givg the followg data: INFINITELY VARIABLE LOCKING/BALANCING DEVICE 7. Variable Position Load P Carrier. The position of the load p is determed and set durg manufacture to achieve the design load and travel requested. For supports other than those with very small movement provided, a variable position load p carrier is fitted; this provides potential for additional load adjustment. By movg the carrier closer to the fulcrum, the supportg effort will be creased and the travel provided decreased. By movg the carrier the opposite direction, the supportg effort is decreased, and the travel provided creased. This provides maximum flexibility situations where changes to the required supportg effort can occur. Once the carrier is repositioned, there is still the +/ 20% load adjustment available. Variable position load p carriers are fitted to supports whose total movements provided are greater than the followg values: C1: 4.73, C2: 4.73, C3: 4.73, C4: 6.3, C5: 3.94, C6: 5.12, C7: The serial number allocated to each support is unique and will allow traceability of the support details for many years. As a double safeguard agast loss or overpatg of nameplate, etc., each support is steel stamped with the customer s reference mark. 10. Testg. Every unit is tested our calibrated test rigs to prove mechanical performance. Deviation is recorded and graphical reports are available if requested. Our standard range of constants deliver supportg effort to with +/-5% of the specified design load. Our standard documentation cludes a certificate of works test for mechanical performance and a certificate of conformity for materials and manufacture. LOAD kgf DEFLECTION mm LOAD PIN CARRIER 11. High Performance Supports. We offer supports that will operate with mimal friction and hysteresis. These supports are available by special request and will deliver supportg effort to with +/-2% of the specified design load. Over an adjusted range of +/-10% of the design load the supports rema with +/-2% of the adjusted load. These supports have precision load adjustment scales and utilise fe pitched threads for the load adjustment mechanism allowg for very accurate adjustment of the support situ. 12. Corrosion Protection. All sprgs are plastic coated to give maximum corrosion protection. Threaded parts are supplied hot-dipped galvanised while carbon steel parts are pated with one coat of high-build acrylic semigloss pat. Other options are available by request. 143

4 CONSTANT EFFORT SUPPORTS SELECTION Selection of Constant Effort Supports can either be done manually from the catalogue as described below, or by usg computer software that is available from our sales department. SELECTION FROM THE CATALOGUE 1. Determe load and theoretical movement to be catered for by the support. It is important to remember to add the weight of laggg, pipe clamps and other suspended components to the pipe weight. 2. The selection charts show the maximum vertical movement any support will provide for a given load. A certa amount of overtravel must be added to the theoretical movement. Normally we would recommend about 10% of theoretical movement, but on no account less than 1. It should, however, be noted that dividual companies have their own specifications regardg overtravel, to which we would adhere on request. 3. Decide upon the type of support to be used. Refer to the diagrams located on pages 147 & 170. The type of unit is dictated by the relative positions of pipe and steelwork and by available space. Note that some areas of the selection chart cannot be used for types VS, VD and, and that maximum travel is reduced for types HS and. 4. Details of top suspensions are given later the catalogue, the nature of the support position will determe the top suspension to be employed. Sgle pot suspension, i.e. HS, VS and, has the advantage of beg rotatable about the suspension pot, thus clearg any obstructions close proximity. 5. Havg determed type of hanger, load to be supported, total travel required, turn to the load selection chart and proceed as follows: a) Locate total travel required at side of chart. b) Move horizontally across until load equal to or just greater than the load to be supported is located. Never select less than the actual load. c) Read off vertically support size. d) Return to load and move down remag same vertical column until nearest figure to design load is found. e) Returng horizontally across this column will give total travel provided for this support. DETERMINATION OF SUPPORT Havg recorded support size, type and total movement provided, proceed as follows: 1. Open out pages 147 & 170 to show the appropriate type. 2. Turn to the page givg dimensions of the required support frame size, i.e. C1, C2, C3, etc. 3. Dimensions can now be read directly from the tables shown. Dimensions are one of four categories: a) Dependent on Movement Provided These dimensions are given on the right hand page and the table headed sgle pot suspension. b) Travel Range Dependent These dimensions are prefixed T or U and are given the left hand table on the left hand page. Note the top suspension details AA, BB, etc. which are also sprg size dependent are also given this table. c) Sprg Size Dependent These dimensions are prefixed S and are given the mid centre table on the left hand page. d) Fixed These dimensions are prefixed F or X and are given the top centre table on the left hand page. 4. Note that the take out dimensions A1, A2, A3, J4, J5, J6, J7 and J8 and pivot to load p dimensions D and E are given at zero rotation of the lever, that is with the lever the uppermost position. To determe the take out dimension the stalled condition, the stalled travel position must be added to A1, A2 or A3 or subtracted from J4, J5, J6, J7 or J8. e.g. for a support with cold to hot movement 11 1/2 up and 290 mm movement provided, the stalled travel position might be set at 10 3/4. ORDERING INFORMATION Either: a) Advise: i) Number off. ii) Support Description, i.e. C4 13 HD TS2 6 Size Type Susp. Style Movt. Prov. iii) Installed to operatg movement and direction. iv) Fish required. v) Support Mark No. vi) Thread form. or b) Advise: i) Number off. ii) Support Type, e.g. VS. iii) Suspension style (if applicable), e.g. TS3. iv) Supportg effort required. v) Installed to operatg movement and direction. vi) Any specific requirement for overtravel. vii) Fish required. viii) Support Mark No. ix) Thread form. In this case, we will determe the support size to be supplied. 144

5 CONSTANT EFFORT SUPPORTS INSTATION AND ERECTION Types HS, HD, VS, VD, HBM,,, & VIBM: 1. Make fast upper and lower suspension connections ensurg the hanger rod is directly over the required pot of attachment rememberg that the lower suspension rod should not be more than 5 deg. from the vertical any condition. 2. All supports are sent to site locked the D.T.S. (Despatched to site) position shown on the contract drawg. To ensure the support is takg load correctly, adjust the turnbuckle until the pipework is at the correct elevation. If the supportg system is balance, the lockg nuts holdg the sprg compression plate will be easily moved and should be parked at opposite extremities of the lockg rods (away from the movg sprg plate). If the lockg nut nearest to the lever arm will not rotate, then the support is overloaded and positive adjustment on the load adjuster is required until the nut just becomes free; the support is then balance. If the nuts furthest from the lever arm will not rotate, the support is providg too much supportg effort, and negative load adjustment is required until these nuts just become free. 3. When the system is subject to cold pull, the support is delivered locked the D.T.S. position. Prior to cold pull, the support must be unlocked to allow the support to travel and assist with the cold pull. On completion of the cold pull, the dicator readg should be that shown as P.T.E. (Prior to Thermal Expansion) on the contract drawg. It is also possible to achieve the cold pull movement by means of the support turnbuckle with the support remag locked, this stance D.T.S. = P.T.E. 4. If the pipework is subject to laggg, hydrostatic testg or acid cleang after stallation of the supports, the supports should rema locked until these operations are complete. 5. IT IS IMPERATIVE THAT A FINAL CHECK OF SUPPORTS IS CARRIED OUT TO ENSURE THAT THEY ARE UNLOCKED PRIOR TO THERMAL EXPANSION TAKING PLACE, AND TO ENSURE THAT THEY ARE SET IN THEIR CORRECT P.T.E. POSITIONS. 6. Supports must not be used for purposes other than that for which they have been designed. They must not be used for riggg and erection purposes. They should be handled as pieces of semi-machery and stored doors a dry environment. Types HBMCS & CS 1. The same procedures as above apply except that the transference of the load to the support is done by means of the adjuster nut which is situated below the load pad stead of by means of the turnbuckle. OPTIONAL FEATURES 1. Limit Stops. The fitely variable lockg/balancg device may be enhanced to precisely limit sprg travel. Additional nuts welded position are used to limit movement to a specified amount. LIMIT STOP OPTION 2. The construction of Constant Effort Supports makes the application of special pat fishes a simple matter. 3. For low temperature applications suitable grades of carbon steel are used to suit the specified temperature range. Where necessary the material used for sprg coils is also changed to an appropriate grade of steel. 4. For extreme corrosive conditions, extra-thick body section can be supplied. 5. Fully galvanised supports are available where required. Due to the construction of the units, no weldg takes place after galvanisg. 6. For extended life offshore or other situations subject to highly corrosive conditions, supports are available various grades of staless steel with the sprg coil from 17/4 PH (precipitation hardened) staless steel. Please check with our design department for dimensional formation. 7. In Cryogenic applications supports are available manufactured entirely austenitic staless steel. Please check with our design department for dimensional formation. 8. For types HBMC and C, where lateral loadg greater than 25% of the maximum operatg load is envisaged, PTFE covered load pads should be specified. 9. Direct Readg Travel Indicator. For precise settg of the support position, a direct readg dicator, givg the travel position ch is available upon request. MAINTENANCE It is recommended that supports are spected every six months for the followg: 1. That no debris or tools are impairg the correct operation of the support. 2. That position of the travel dicator is as anticipated the design. If this is not the case, the pipework engeer should be notified. DIRECT READING TRAVEL SCALE A more detailed erection and matenance procedure is available on request. 145

6 CONSTANT EFFORT SUPPORTS 146 TURN OUT THIS PAGE FOR DIAGRAMS OF CONSTANT EFFORT SUPPORTS: SUSPENDED TYPES /09/11 Proof PIPESUPP dd /10/

7 FP E TJ A3 AA FC SA CONSTANT EFFORT SUPPORTS: SUSPENDED TYPES FA Types HD & HS E TC SA Alternative Top Suspension styles FB A1 AA TB U (HD) V1 (HS) FC FG (HD) FD FE STYLE TS1 (Types HD & VD) TAPPED HOLES SIZE LL XN U FG ØX C TA D FP TYPES HD & VD STYLE TS2 ( TYPES) FB AA Types VD & VS U (VD) V2 (VS) TF SF FG (VD) EE BB AA U CC FG TYPES HD, VD & ØDD TYP. V TYPES HS, VS & ØDD TYP. A2 TE E STYLE TS3 ( TYPES) SC C TA EE GG BB U CC FG ØDD TYP. V ØDD TYP. FA ØX D 5º FE FD AA TYPES HD, VD & TYPES HS, VS & STYLE TS4 (Types HD, VD & ) Types & CC U FG FA U () V3 () FG () BB ØDD TYP. EE TYP. FE SB STYLE TS5 (Types HD & VD) U FG FM AA TYPES HD, VD & ØX TA C FD 4 HOLES DIA. FH FL FK XQ D FN FJ FJ 147 CONSTANT EFFORT SUPPORTS: BASE MOUNTED TYPES ARE LOCATED ON PAGE /09/11 Proof 3 13/10/ :46:09

8 CONSTANT SUPPORT SELECTION CHART (LOADS IN KIPS) SIZE C1-1 C1-2 C1-3 C1-4 C2-5 C2-6 C2-7 C3-8 C3-9 C3-10 C4-11 C4-12 C4-13 C4-14 C4-15 C5-16 C5-17 C5-18 C5-19 TRAVEL TRAVEL SIZE C1-1 C1-2 C1-3 C1-4 C2-5 C2-6 C2-7 C3-8 C3-9 C3-10 C4-11 C4-12 C4-13 C4-14 C4-15 C5-16 C5-17 C5-18 C DO NOT SELECT TYPES VS, VD OR ABOVE THE BLACK LINE. DO NOT SELECT TYPES HS OR BELOW THE RED LINE. REMEMBER TO ADD OVERTRAVEL OWANCE TO PIPE BEFORE SELECTING SUPPORT SIZE.

9 CONSTANT SUPPORT SELECTION CHART (LOADS IN KIPS) SIZE C6-20 C6-21 C6-22 C6-23 C7-24 C7-25 C7-26 C7-27 C7-28 C7-29 C8-30 C8-31 C8-32 C9-33 C9-34 TRAVEL TRAVEL SIZE C6-20 C6-21 C6-22 C6-23 C7-24 C7-25 C7-26 C7-27 C7-28 C7-29 C8-30 C8-31 C8-32 C9-33 C9-34 DO NOT SELECT TYPES VS, VD OR ABOVE THE BLACK LINE. DO NOT SELECT TYPES HS OR BELOW THE RED LINE. REMEMBER TO ADD OVERTRAVEL OWANCE TO PIPE BEFORE SELECTING SUPPORT SIZE. 149

10 CONSTANT SUPPORT SELECTION CHART (LOADS IN lbs) SIZE C1-1 C1-2 C1-3 C1-4 C2-5 C2-6 C2-7 C3-8 C3-9 C3-10 C4-11 C4-12 C4-13 C4-14 C4-15 C5-16 C5-17 C5-18 C5-19 TRAVEL TRAVEL SIZE C1-1 C1-2 C1-3 C1-4 C2-5 C2-6 C2-7 C3-8 C3-9 C3-10 C4-11 C4-12 C4-13 C4-14 C4-15 C5-16 C5-17 C5-18 C DO NOT SELECT TYPES VS, VD OR ABOVE THE BLACK LINE. DO NOT SELECT TYPES HS OR BELOW THE RED LINE. REMEMBER TO ADD OVERTRAVEL OWANCE TO PIPE BEFORE SELECTING SUPPORT SIZE.

11 CONSTANT SUPPORT SELECTION CHART (LOADS IN lbs) SIZE C6-20 C6-21 C6-22 C6-23 C7-24 C7-25 C7-26 C7-27 C7-28 C7-29 C8-30 C8-31 C8-32 C9-33 C9-34 TRAVEL TRAVEL SIZE C6-20 C6-21 C6-22 C6-23 C7-24 C7-25 C7-26 C7-27 C7-28 C7-29 C8-30 C8-31 C8-32 C9-33 C9-34 DO NOT SELECT TYPES VS, VD OR ABOVE THE BLACK LINE. DO NOT SELECT TYPES HS OR BELOW THE RED LINE. REMEMBER TO ADD OVERTRAVEL OWANCE TO PIPE BEFORE SELECTING SUPPORT SIZE. 151

12 C1: FOR SIZES C1 1 TO C1 4 DEPENDENT PROED TRAVEL RANGE DEPENDENT U TA TB TC TD TE TF TG TH TJ TOP SUSPENSION DETAILS DD 0.56 AA 1.19 BB 0.79 CC 1.97 EE 0.24 GG 0.79 LL 1/2 FIXED FA 6.11 FQ 2.96 XE 0.56 FB 3.35 FR 7.09 XF 7.49 FC 1.78 FS 7.09 XG 4.14 FD 0.99 FT 4.14 XH 2.17 FE 4.81 FU 1.38 XJ 5.91 FF 0.24 FV 5.52 XK 7.88 FG 1.38 FW 0.56 XL 0.56 FH 0.56 FX 2.37 XM 2.96 FJ 0.79 FY 3.15 XN 0.4 FK 7.09 FZ 7.09 XP 3.94 FL 5.52 XA 9.65 XQ 4.1 FM 0.24 XB 4.14 XR 3.94 FN 2.96 XC 3.94 FP 1.58 XD 5.52 SPRING SIZE DEPENDENT C1-1 C1-2 C1-3 C1-4 SA SB SC SD SE SF WEIGHTS (lbs) C1-1 C1-2 C1-3 C1-4 HS/HD VS/VD / HBMCS HBM CS VIBM SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C1-6 C1-6 C1-7 C1-4 V1 V3 V2 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 4.7 TRAVEL INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 1/2 CHANGE 6.3 NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. 152

13 C1: FOR SIZES C1 1 TO C1 4 SIZES C1-1 C1-2 C1-3 C1-4 PROED C HS VS HD VD HBMCS HBM CS D E A1 A2 J4 J5 J8 ØX A3 J6 J7 ØX A3 J6 J7 ØX A3 J6 J7 ØX A3 J6 J7 CS CS CS AT ZERO ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

14 C2: FOR SIZES C2 5 TO C2 7 DEPENDENT TRAVEL RANGE DEPENDENT PROED U TA TB TC TD TE TF TG TH TJ TOP SUSPENSION DETAILS DD 0.56 AA 1.19 BB 0.79 CC 1.97 EE 0.24 GG 0.79 LL 1/2 FIXED FA 7.88 FQ 2.96 XE 0.56 FB 3.35 FR 7.09 XF 7.49 FC 2.17 FS 7.09 XG 4.14 FD 0.99 FT 4.14 XH 2.17 FE 6.46 FU 1.38 XJ 5.91 FF 0.24 FV 5.52 XK 7.88 FG 1.38 FW 0.56 XL 0.56 FH 0.56 FX 2.76 XM 3.15 FJ 0.79 FY 3.55 XN 0.4 FK 7.09 FZ 7.09 XP 4.34 FL 5.52 XA XQ 4.1 FM 0.24 XB 4.14 XR 4.73 FN 3.15 XC 4.73 FP 1.97 XD 5.52 SPRING SIZE DEPENDENT WEIGHTS (lbs) C2-5 C2-5 SA SB SC SD SE SF HS/HD VS/VD / HBMCS HBM CS VIBM C2-6 C2-6 C2-7 C2-7 SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C2-6 C2-6 C2-7 V1 V3 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 4.7 TRAVEL INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 1/2 CHANGE 6.3 NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. 154

15 C2: FOR SIZES C2 5 TO C2 7 SIZES C1-1 C1-2 C1-3 PROED C HS VS HD VD HBMCS HBM CS D E A1 A2 J4 J5 J8 ØX A3 J6 J7 ØX A3 J6 J7 ØX A3 J6 J7 CS CS AT ZERO ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

16 C3: FOR SIZES C3 8 TO C3 10 DEPENDENT TRAVEL RANGE DEPENDENT TOP SUSPENSION DETAILS PROED C3-8 C3-9 C U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 1/2 1/2 1/2 1/2 1/2 DD AA BB CC EE GG LL 5/8 1/2 1/2 1/2 1/2 DD AA BB CC EE GG LL 5/8 1/2 1/2 1/2 1/2 FIXED FA 9.85 FQ 2.96 XE 0.56 FB 3.51 FR 7.09 XF 8.67 FC 2.56 FS 7.68 XG 4.73 FD 1.97 FT 4.73 XH 3.55 FE 7.8 FU 1.38 XJ 7.09 FF 0.32 FV 5.52 XK 9.85 FG 1.38 FW 0.56 XL 0.56 FH 0.56 FX 3.35 XM 4.53 FJ 0.79 FY 4.73 XN 0.48 FK 7.09 FZ 8.67 XP 5.71 FL 5.52 XA 13 XQ 4.65 FM 0.32 XB 4.73 XR 6.11 FN 4.53 XC 6.7 FP 2.37 XD 7.09 SPRING SIZE DEPENDENT WEIGHTS (lbs) C3-8 C3-8 SA SB SC SD SE SF HS/HD VS/VD / HBMCS HBM CS VIBM C3-9 C3-10 C3-10 SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C3-8 C3-9 C3-10 V1 V3 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 4.7 TRAVEL INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 5/8 1/2 CHANGE NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. 156

17 C3: FOR SIZES C3 8 TO C3 10 SIZES C1-1 C1-2 C1-3 PROED C HS VS HD VD HBMCS HBM VIBM CS D E A1 A2 J4 J5 J8 ØX A3 J6 J7 ØX A3 J6 J7 ØX A3 J6 J7 CS CS AT ZERO ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

18 C4: FOR SIZES C4 11 TO C4 15 DEPENDENT PROED U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 3/4 1/2 1/2 1/2 1/2 1/2 1/2 DD AA BB CC EE GG LL 3/4 1/2 1/2 1/2 1/2 1/2 1/2 DD AA BB CC EE GG LL 1 3/4 5/8 5/8 1/2 1/2 1/2 DD AA BB CC EE GG LL 1 3/4 5/8 5/8 1/2 1/2 1/2 DD AA BB CC EE GG LL 1 1/4 1 3/4 3/4 5/8 5/8 5/8 TRAVEL RANGE DEPENDENT C4-11 C4-12 TOP SUSPENSION DETAILS C4-13 C4-14 C FIXED FA 13 FQ 3.94 XE 0.71 FB 4.53 FR 8.86 XF FC 3.75 FS 9.45 XG 6.11 FD 2.01 FT 6.11 XH 4.34 FE 9.85 FU 1.38 XJ 8.67 FF 0.4 FV 6.89 XK FG 1.38 FW 0.71 XL 0.71 FH 0.71 FX 4.14 XM 6.11 FJ 0.99 FY 6.3 XN 0.79 FK 8.86 FZ XP 7.49 FL 6.89 XA XQ 5.83 FM 0.4 XB 6.11 XR 7.68 FN 6.11 XC 8.27 FP 3.55 XD 9.85 SPRING SIZE DEPENDENT INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: C4-11 C4-12 C4-13 C4-14 C4-15 SA SB SC SD SE SF WEIGHTS (lbs) C4-11 C4-12 HS/HD VS/VD / HBMCS HBM C4-13 C4-14 C CS VIBM SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C4-11 C4-12 C4-13 C4-14 C4-15 V1 V3 V2 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 6.3 TRAVEL ØX 1/2 5/8 3/ /4 CHANGE NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. 158

19 C4: FOR SIZES C4 11 TO C4 15 PROED C D E SIZES C4-11 C4-12 C4-13 C4-14 C4-15 HS VS HD VD A1 A2 HBMCS HBM J4 J5 J8 ØX A3 CS J6 J7 ØX A3 CS J6 J7 ØX A3 CS J6 J7 ØX A3 CS J6 J7 ØX A3 CS AT ZERO ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION J6 J / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

20 C5: FOR SIZES C5 16 TO C5 19 DEPENDENT TRAVEL RANGE DEPENDENT PROED TOP SUSPENSION DETAILS C5-15 C5-17 C5-18 C U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 1 1/4 1 3/4 3/4 3/4 3/4 3/4 3/4 DD AA BB CC EE GG LL 1 1/2 1 1/4 3/4 3/4 3/4 3/4 3/4 3/4 DD AA BB CC EE GG LL 1 1/2 1 1/ /4 3/4 3/4 DD AA BB CC EE GG LL 1 3/4 1 1/ /4 3/4 3/ FIXED FA FQ 4.73 XE 0.87 FB 5.56 FR XF 12.6 FC 4.34 FS XG 9.26 FD 3.63 FT 9.26 XH 6.7 FE FU 2.56 XJ FF 0.48 FV 8.08 XK FG 2.56 FW 0.87 XL 0.87 FH 0.87 FX 5.52 XM 8.47 FJ 1.19 FY 7.49 XN 0.99 FK FZ XP FL 8.08 XA XQ 7.17 FM 0.6 XB 9.26 XR FN 8.47 XC FP 3.94 XD 12.6 INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 1/2 5/8 3/ /4 1 1/2 1 3/4 CHANGE SPRING SIZE DEPENDENT NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. C5-16 C5-17 SA SB SC SD SE SF WEIGHTS (lbs) C5-16 C5-17 HS/HD VS/VD / HBMCS HBM CS VIBM C5-18 C5-18 C5-19 C5-19 SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C5-16 C5-17 C5-18 C5-19 V1 V3 V2 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 9.4 TRAVEL

21 C5: FOR SIZES C5 16 TO C5 19 PROED C D E SIZES C5-16 C5-17 C5-18 C5-19 HS VS HD VD A1 A2 HBMCS HBM J4 J5 J8 ØX A3 CS J6 J7 ØX A3 CS J6 J7 ØX A3 CS J6 J7 ØX A3 CS J6 J7 AT ZERO ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION AT 0 ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

22 C6: FOR SIZES C6 20 TO C6 23 DEPENDENT PROED U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 1 3/4 1 1/2 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 DD AA BB CC EE GG LL 2 1 1/2 1 1/4 1 1/4 1 1/4 1 1/4 1 1/4 DD AA BB CC EE GG LL 2 1 3/4 1 1/2 1 1/4 1 1/4 1 1/4 1 1/4 DD AA BB CC EE GG LL 2 1/4 1 3/4 1 1/2 1 1/2 1 1/4 1 1/4 1 1/4 TRAVEL RANGE DEPENDENT C6-20 TOP SUSPENSION DETAILS C6-22 C6-21 C , FIXED FA FQ 5.91 XE 1.3 FB 6.97 FR XF FC 6.3 FS XG FD 4.38 FT XH 8.27 FE FU 2.96 XJ FF 0.6 FV XK FG 2.96 FW 1.3 XL 1.3 FH 1.3 FX 7.88 XM FJ 1.78 FY XN 1.58 FK FZ 19.3 XP FL XA XQ 8.98 FM 0.79 XB XR FN XC FP 5.91 XD SPRING SIZE DEPENDENT INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 5/8 3/ /4 1 1/2 1 3/ /4 CHANGE NIL NIL NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. C6-20 C6-21 C6-22 C6-23 SA SB SC SD SE SF WEIGHTS (lbs) C6-20 C6-21 C6-22 C6-23 HS/HD VS/VD / HBMCS HBM CS VIBM SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C6-20 C6-21 C6-22 C6-23 V1 V3 V2 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 11.8 TRAVEL

23 C6: FOR SIZES C6 20 TO C6 23 PROED SIZES C6-20 C5-21 C6-22 C6-23 HBMCS HS VS HS VS HS VS HS VS HD VD HD VD HD VD HD VD ØX ØX ØX ØX D E J4 A1 A2 A3 J6 J7 J5/J8 A1 A2 A3 J6 J7 J5/J8 A1 A2 A3 J6 J7 J5/J8 A1 A2 A3 J6 J7 C AT 0 ROTATION AT ZERO ROTATION AT ZERO ROTATION AT ZERO ROTATION AT ZERO ROTATION CS HBMMBM / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / CS HBMMBM CS HBMMBM CS HBMMBM J5/J8 163

24 C7: FOR SIZES C7 24 TO C7 27 DEPENDENT PROED TRAVEL RANGE DEPENDENT TOP SUSPENSION DETAILS C7-24 C7-25 C7-26 C U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 2 1/4 1 3/4 1 1/2 1 1/2 1 1/2 1 1/2 DD AA BB CC EE GG LL 2 1/ /2 1 1/2 1 1/2 1 1/2 DD AA BB CC EE GG LL 2 1/2 2 1/4 1 3/4 1 3/4 1 1/2 1 1/2 DD AA BB CC EE GG LL 3 2 1/ /4 1 3/4 1 3/4 FIXED FA FQ 5.91 XE 1.58 FB 8.98 FR 18.9 XF FC 9.45 FS XG FD 7.05 FT XH 12.6 FE FU 3.94 XJ FF 0.99 FV XK 31.7 FG 3.94 FW 1.58 XL 1.58 FH 1.58 FX XM FJ 2.56 FY XN 1.97 FK 18.9 FZ XP FL XA XQ FM 1.19 XB XR FN XC FP 9.06 XD SPRING SIZE DEPENDENT INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 3/ /4 1 1/2 1 3/ /4 2 1/2 3 CHANGE NIL NIL NIL NIL NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. C7-24 C7-25 C7-26 C7-27 SA SB SC SD SE SF WEIGHTS (lbs) C7-24 C7-25 C7-26 C7-27 HS/HD VS/VD / HBMCS HBM CS VIBM SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C7-24 C7-25 C7-26 C7-27 V1 V3 V2 V2 V2 V TYPES HS AND ARE NOT USED ABOVE 13.4 TRAVEL

25 C7: FOR SIZES C7 24 TO C7 27 PROED SIZES C7-24 C7-25 C7-26 C7-27 HBMCS HS VS HS VS HS VS HS VS HD VD HD VD HD VD HD VD D E J4 ØX A1 A2 A3 J6 J7 J5/J8 ØX A1 A2 A3 J6 J7 J5/J8 ØX A1 A2 A3 J6 J7 J5/J8 ØX A1 A2 A3 J6 J7 C AT 0 ROTATION AT ZERO ROTATION AT ZERO ROTATION AT ZERO ROTATION AT ZERO ROTATION CS HBMMBM / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / CS HBMMBM CS HBMMBM CS HBMMBM J5/J8 165

26 C7: FOR SIZES C7 28 AND C7 29 DEPENDENT PROED TRAVEL RANGE DEPENDENT TOP SUSPENSION DETAILS C7-28 C INSTED HEIGHT J4 AND J7 OW ±1 ADJUSTMENT. TAKE-OUT A1, A2, A3, J5, J6 AND J8 OW ±3 ADJUSTMENT AND ASSUME USE OF A STANDARD F228A EYEBOLT. WHERE SEVERE HEADROOM LIMITATIONS EXIST, A1, A2 AND A3 CAN BE REDUCED AND J5, J6 AND J8 INCREASED AS FOLLOWS BY USE OF A SHORTENED EYEBOLT: ØX 1 1/2 1 3/ /4 2 1/ /4 CHANGE NIL NIL NIL NIL NIL U TA TB TC TD TE TF TG TH TJ DD AA BB CC EE GG LL 3 2 1/ /4 1 3/4 DD AA BB CC EE GG LL 3 1/4 2 1/2 1 1/4 2 1/4 1 3/4 1 3/4 FIXED FA FQ 5.91 XE 1.82 FB 8.98 FR 18.9 XF FC 9.45 FS XG FD 7.05 FT XH 12.6 FE FU 3.94 XJ FF 0.99 FV XK 31.7 FG 3.94 FW 1.82 XL 1.58 FH 1.82 FX XM FJ 2.56 FY XN 2.37 FK 18.9 FZ XP FL XA XQ FM 1.19 XB XR FN XC FP 9.06 XD SPRING SIZE DEPENDENT NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2, A3, J4, J5, J6, J7 AND J8 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION. N.B. DIMENSION TA IS THE MINIMUM FORWARD CLEARANCE REQUIRED. C7-28 C7-29 SA SB SC SD SE SF WEIGHTS (lbs) C7-28 C7-29 HS/HD VS/VD / HBMCS HBM CS VIBM SINGLE POINT SUSPENSION DIMENSION V PROED SIZES C7-28 C7-29 V1 V3 V2 V TYPES HS AND ARE NOT USED ABOVE 13.4 TRAVEL

27 C7: FOR SIZES C7 28 AND C7 29 PROED C SIZES C7-28 C7-29 D E HBMCS J4 HS VS HD VD ØX A1 A2 A3 HBM VIBM CS J5 J6 J7 J8 ØX HS VS HD VD HBM VIBM CS A1 A2 A3 J5 J6 J7 J8 AT ZERO ROTATION AT ZERO ROTATION AT ZERO ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

28 Headg C8: FOR SIZE C8 30 DEPENDENT PROED TRAVEL RANGE DEPENDENT TOP SUSPENSION DETAILS FIXED FA FR FB FS FC 13 FT FD 7.05 FU 5.91 FE FV FF 0.99 FW 1.58 FG 5.91 SA FP SC WEIGHTS (lbs) C8-30 HS/HD VS/VD HBM C8 30 SUPPORTS ARE AVAILABLE IN THE FOLLOWING TYPES TYPE HBM TYPE HS, STYLE TS2 AND TS3 TYPE HD, STYLE TS2, TS3 AND TS4 TYPE VS, STYLE TS2 AND TS3 TYPE VD, STYLE TS2, TS3 AND TS4 TAKE-OUT A1, A2 AND J5 OW ±3 ADJUSTMENT NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2 AND J5 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION U TA TB TC TE TF TG DD AA BB CC EE GG PROED HS VS HS VS HBM HD VD ØX C D E A1 V1 A2 V2 J5 AT ZERO ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

29 C8: FOR SIZE C8 31 PROED TRAVEL RANGE DEPENDENT TOP SUSPENSION DETAILS FIXED FA FR FB FS FC 13 FT FD 7.05 FU 5.91 FE FV FF 0.99 FW 1.58 FG 5.91 SA FP SC 62.6 WEIGHTS (lbs) DEPENDENT C8-31 HS/HD 4299 VS/VD HBM C8 31 SUPPORTS ARE AVAILABLE IN THE FOLLOWING TYPES TYPE HBM TYPE HS, STYLE TS2 AND TS3 TYPE HD, STYLE TS2, TS3 AND TS4 TYPE VS, STYLE TS2 AND TS3 TYPE VD, STYLE TS2, TS3 AND TS4 TAKE-OUT A1, A2 AND J5 OW ±3 ADJUSTMENT NOTE DIA. X IS THREADED UNC RIGHT HAND AS STANDARD. NOTE THAT A1, A2 AND J5 ARE GIVEN AT ZERO ROTATION, THAT IS WITH THE LEVER IN THE UPPERMOST POSITION U TA TB TC TE TF TG DD AA BB CC EE GG PROED HS VS HS VS HBM HD VD ØX C D E A1 V1 A2 V2 J5 AT ZERO ROTATION / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / / /

30 FX FC SA CONSTANT EFFORT SUPPORTS: Base Mounted Types Type HBMCS FA FQ SQ FC SA FF E TD FD FE J4 XP FB TA C D FT FU FR FV 4 HOLES DIA, FW FS Type HBM FA SA FB FC FF E J5 TG FD FE ØX C TA D BASE PLATE DETAIL AS TYPE HBMCS E SD J6 TA C FF J7 E J8 TH E XR FC SA Type CS FQ SQ TA C SF SE FY FA 5º FD D FE XB XC 4 HOLES DIA. XE FZ XD XA Type VIBM FA FE SA Type FB FF ØX C TA D FD XM XQ XG XH FA BASE PLATE DETAIL AS TYPE CS ØX 5º D FE FD 4 HOLES DIA. XL XF XJ XK /06/11 Proof PIPESUPP dd /10/ :50:2

31 CONSTANT EFFORT SUPPORTS TURN OUT THIS PAGE FOR DETAILS OF SUPPORT SIZE C8 31 AND FOR DIAGRAMS OF CONSTANT EFFORT SUPPORTS: BASE MOUNTED TYPES /09/11 Proof PIPESUPP dd /10/ :5

32 CONSTANT EFFORT SUPPORTS Constant Effort Support Durg Load Test Constant Effort Support Type HS 172