Hydraulic Force Control

Transcription

1 U SER MANUAL Hydraulic Force Control Pressure Balancing Full Free Lift Masts Manual Number R5 cascade corporation Cascade is a Registered Trademark of Cascade Corporation

2 C ONTENTS Page OVERVIEW 1 INSTALLATION Equalizer and Hoses HFC and Hoses 3 Return-to-Tank & Optional Overdrive 4 Sensor Switch (if equipped) 5 Disabling HFC System 6 QUICK SETUP GUIDE 7 SETUP 8 OPERATION 9 TROUBLESHOOTING 11 PARTS 14 GLOSSARY 17 i R5

3 V1 T IN O VERVIEW HYDRAULIC FORCE CONTROL (HFC) This manual provides installation instructions, prior to operation, operation, troubleshooting and parts for Cascade Hydraulic Force Control (HFC) systems. If you need additional information or assistance, contact Cascade Corporation. Refer to the back cover. What The System Does The HFC system enables Cascade Paper Roll Clamps to automatically apply clamp force proportional to weight of the load. This system will reduce the chance of damage caused by excessive clamp force. How The System Works An initial no-slip starting pressure is applied to the load when it is first clamped. As the load is lifted, the HFC system increases clamp force and applies a consistent clamp force proportional to load weight. The hoist system provides pressure to the HFC to increase clamp pressure as hoist pressure increases. IMPORTANT: Setup is required after kit installation. Refer to page 8. For Quick Setup Guide, refer to page 7. Prior to Installation The system can be calibrated to balance the clamp force relationship of clamp capacity and truck size. The truck HOIST pressure should be equal to or higher than clamp pressure to properly clamp paper. Total load weight equals paper weight plus clamp weight. Confirm that the truck size is compatible with the clamp capacity. Available maximum hoist pressure with load weight (combined maximum size load and weight of the clamp) should be determined in freelift. The hoist pressure determined needs to be within 10% of the clamping pressure required to clamp the heaviest load. NOTE: Verify truck hydraulic tank is full for best results of HFC kit function. The following is provided to assist in planning hose and fitting sizes to match the lift truck hoist line: Equalizer Fittings The mast and truck ports are No. 1 O-ring with No. 1 JIC fittings installed. No O-ring reducers are supplied to adapt to smaller hoist lines. HFC Kit Part No (1 V) (4V-48V) Equalizer HFC To HFC TRUCK MAST AC091.eps To Mast To Hoist Line Cylinder Reducer from #1 to #10 O-ring NOTE: Cascade recommends that component installation be done according to page number order. OP CL Sensor Switch (Page 6) Return-to-Tank (Page 5) R5 HFC (Page 4) Optional Overdrive (Refer to Installation Instructions ) Equalizer (Page ) AC1906.eps 1

4 I NSTALLATION EQUALIZER VALVE AND HOSES 1 Install adapter fittings to HFC, TRUCK and MAST ports on the equalizer valve. Install the equalizer valve in the hoist circuit between the hoist auxiliary valve and mast lowering control valve. NOTE: For trucks with a delivered flow volume of 18 GPM (68 L/min.) or less, install reducer fittings in the TRUCK and MAST ports. Install the hose from the hoist auxiliary valve HOIST port to the equalizer valve TRUCK port. 3 Install a hose that connects the MAST port of the equalizer valve to the mast lowering control valve. 4 Inspect hoses for pinch points and secure as required. No. 1 JIC : Before removing hydraulic lines or components, relieve pressure in the hydraulic system. Turn truck off and open the truck auxiliary control valve(s) several times in both directions. : Follow all recommended safety practices including chaining the freelift mast to the mainlift crossmember when mast is raised. To Hoist Control Port Equalizer TRUCK OR No O-Ring Reducer MAST HFC No O-Ring Reducer OR To Mast Lowering Control No. 1 JIC AC094.eps Mast Cylinders 3 MAST TRUCK HFC Equalizer Existing Lowering Control Hoist Truck Relief Truck Hydraulic Pump Truck Tank AC095.eps R5

5 I NSTALLATION HFC VALVE AND HOSES 1 Install adapter fittings to T, H, CL1, CL, OP1 and OP ports on the HFC valve. Locate and install the HFC valve on the truck cowl using 5/16 in. (8 mm) capscrews. Watch for clearance when the mast is tilted back. The HFC valve cartridges have adjustment screws that will need to be easily accessed. 3 Connect a No. 6 (minimum) hose from the truck auxiliary clamp circuit CLAMP port to the CL1 port of the HFC valve. IMPORTANT: Confirm that this line activates the clamp function when the clamp auxiliary valve lever is pulled back and it is connected to the HFC CL1 port. 4 Connect a No. 6 (minimum) hose from the truck auxiliary valve clamp circuit OPEN port to the OP1 port of the HFC valve. 5 Connect a No. 6 (minimum) hose from the CL port of the HFC valve to the Hose Reel or Internal Reeving supply circuit routed to the attachment revolving connection CLAMP port. 6 Connect a No. 6 (minimum) hose from the OP port of the HFC valve to the Hose Reel or Internal Reeving supply circuit routed to the attachment revolving connection OPEN port. 7 Connect a No. 6 (minimum) hose from the H port of the HFC valve to the HFC port of the equalizer valve. NOTE: For applications where a light load is being handled, a pressure limiter valve may be necessary. This prevents excessive clamp force in applications where the mast is extended to full height on a regular basis while clamping a load. 8 Inspect hoses for pinch points and secure as required. HFC V1 Revolving Connection OP CL 5 1 AC1768.eps Hoist Line Pressure Gauge Port Mast Cylinder Equalizer 6 OP CL Hose Reel or Internal Reeving 5 HFC TRUCK MAST HFC H OP1 CL1 T Existing Lowering Control Hoist Auxiliary 7 Clamp Auxiliary 4 3 IMPORTANT: Confirm that this line activates the clamp function when the clamp auxiliary valve lever is pulled back and it is connected to the HFC CL1 port. Truck Relief Truck Hydraulic Pump Truck Tank R5 AC107.eps 3

6 I NSTALLATION RETURN-TO-TANK & OPTIONAL OVERDRIVE VALVE 1 Install a return-to-tank fitting in the tank line. Lube hose ends and fitting for easy assembly. For complete installation procedure, refer to Installation Instructions Cascade Low Pressure Return Line Adapter Kits are as follows: Tank Hose ID.75 in. (19 mm) 1.00 in. (5 mm) 1.5 in. (31 mm) 1.50 in. (38 mm) Single Line Adapter Kit Included in adapter kit Dual Line Adapter Kit NOTE: For trucks with pressurized return-to-tank lines, the hydraulic tank filler cap must be opened to relieve trapped pressure. An optional overdrive valve aids in increasing arm speed and allows the operator to have a higher clamping pressure when in breakout situations. No Overdrive Connect the T port on the bottom of the HFC to the truck tank line fitting. Overdrive Connect the overdrive valve T IN port with the HFC valve T port. Connect a hose from the overdrive valve T OUT port to the truck tank line fitting. Refer to installation instructions for additional information. CAUTION: If the overdrive valve is not directly installed to the HFC valve T port, a high pressure hose must be used. High pressure hose must be rated for 300 psi (160 bar) working pressure. 3 Inspect hose for pinch points and secure as required. Optional Overdrive 1 Return-to-Tank Fitting (Single shown) HFC AC06.eps V1 Returnto-Tank Line Hose to HFC OP CL T IN Revolving Connection Hose Reel or Internal Reeving Tank Hose OP CL HFC Hoist Auxiliary To Equalizer To Equalizer Clamp Auxiliary H OP1 CL1 T Optional Overdrive Tank Hose AC1766.eps Truck Relief 1 Truck Hydraulic Pump Truck Tank AC1767.eps R5

7 I NSTALLATION SENSOR SWITCH 1 Determine locations to mount the sensor switch on a fixed location on the mast and the bracket with spring wire (if needed) on a moving member on the mast. The sensor switch will signal the mast transition from freelift to mainlift. The provided mounting bracket can be used or modified to aid with mounting the sensor switch. CAUTION: Consult the LIft Truck OEM for proper + power source connection. Connect the harness solenoid connector to the solenoid coil. 3 Connect the harness sensor switch connector to the sensor switch. 4 Connect the harness cable ends to the components shown. 1V Systems Connect the fused positive wire from the cable harness to a switched power source and the ground wire to a chassis ground. 4V 48V Systems Connect the fused positive wire from the cable harness to a DC-to-DC converter positive output wire and the ground wire to the converter negative output wire. Connect a 4V 48V switched power source to the converter fused positive input wire and connect the converter input ground wire to a chassis ground. NOTE: For troubleshooting the wire harness, refer to page 10. NOTE: When installing on electric trucks with regenerative breaking, voltage filter must be installed. Failure to install voltage filter can cause damage to electrical components. Spring Wire with Bracket (if needed) Sensor Switch Moving member on mast AC1748.eps OR Fixed location on mast (additional bracket shown) Sensor Switch Solenoid Relay.5 in. (1 mm) Moving Member (bracket with spring not used) Black 3 Voltage Filter (4 48V systems only) Black 4 Black #1 Fuse, ATM 5 AMP #.15 in. (4 mm) Sensor Switch AC1749.eps Fixed Member OR Cylinder Red Orange Switched Red Orange DC to DC Converter (4V 48V systems only) Ground Truck Battery Truck Fuse Block AC468.eps R5 5

8 I NSTALLATION DISABLING HFC SYSTEM To temporarily disable the HFC features, perform the following steps: V6 1 Turn V1 inward (CW) or until desired clamp pressure is reached. The maximum pressure that the cartridge is capable of handling is 3000 psi (07 bar). Turn V4 all the way out (CCW). 3 OPTIONAL: If the hoist capacity is affected by lifting a load, turn V5 and V6 all the way out (CCW). 4 The truck attachment will now operate in the standard mode. NOTE: To enable HFC features refer to Prior To Operation Section. V5 MAST TRUCK HFC EQUALIZER VALVE HFC VALVE V1 AC1911.eps AC163.ai V R5

9 Q UICK SETUP GUIDE NOTE: Refer to page 8 and 9 for more information. NOTE: All gauge readings should be taken from the long arm clamp cylinder. IMPORTANT: Adjustment steps must be followed in sequence. Step 6 Step Step 3 FINAL PRESSURE V adjusts clamping pressure after hoisting. This adjustment is only needed if there is too much clamp cylinder pressure after hoisting. Cartridge adjustment should only be done when all other cartridges have been adjusted. This cartridge is shipped fully turned out. Any adjustment to this cartridge will effect ALL clamping pressures. Turn clockwise (CW) to decrease clamping pressure. STATIC HOIST PRESSURE V3 closes the connection from the hoist line to the clamp line. This needs to be set lower then V1 but also high enough to close off the hoist line at static hoist line pressure with out a load. Adjust cartridge clockwise (CW) until attachment stops lowering while closing arms. Cylinder pressure should increase after hoisting. If no increase in pressure, increase V1 clockwise (CW) OR decrease V3 counterclockwise (CCW). MAINLIFT PRESSURE V5 increases freelift hoist pressure to achieve a hoisting pressure balance between freelift and mainlift and makes pressure available to clamping circuit. Turn clockwise (CW) to increase freelift hoist line pressure. If mainlift clamp pressure is higher than freelift clamp pressure, turn CW. FINAL PRESSURE V V3 STATIC HOIST PRESSURE MAINLIFT PRESSURE V5 MAST TRUCK HFC Step 1 V4 V1 AC1578.eps HOIST/CLAMP PRESSURE STARTING PRESSURE MAXIMUM CLAMP PRESSURE V6 EQUALIZER VALVE STARTING PRESSURE V1 sets starting pressure. Turn clockwise (CW) to raise pressure. Pressure setting should not damage/ over clamp a light load and heaviest load should not slip when hoisted. HFC VALVE Step 4 Step 5 MAXIMUM CLAMP PRESSURE V4 limits maximum clamp pressure. Attachment arms should be fully closed (without a load) and hoisted to maximum lift. Turn clockwise (CW) to increase pressure. Do not set lower than pressure needed to handle maximum load. HOIST/CLAMP PRESSURE V6 adjusts clamping pressure during hoisting. This adjustment is only needed if there is not enough clamp cylinder pressure during hoisting. Cartridge adjustment should only be done when all other cartridges (except V) have been adjusted. This cartridge is shipped fully turned out. Any adjustment to this cartridge will effect ALL clamping pressures. Turn clockwise (CW) to increase cylinder pressure. AC1911.eps R5 7

10 S ETUP CARTRIDGE ADJUSTMENT CARTRIDGE FUNCTION SUMMARY Starting Pressure (V1) Sets starting pressure with or without a load. Close arms fully to get a pressure setting. Clockwise (CW) adjustment raises starting pressure. Final Pressure (V) Adjusts clamping pressure after hoisting. This should only be adjusted after all other cartridges are set, if needed. NOTE: This cartridge is fully turned out at the factory. Static Hoist Pressure (V3) Closes connection from hoist line to clamp line. When set, the pressure must be lower than Setup Pressure (V1). Freelift Pressure (V4) Limits maximum clamping pressure. Do not set lower than pressure needed to handle maximum roll. Mainlift Pressure (V5) Increases freelift hoisting pressure. Balances freelift and mainlift hoisting pressure and makes pressure available to clamping circuit. Hoist/Clamp Pressure (V6) Increase clamp pressure when a roll is hoisted. This should only be adjusted after all other cartridges (except V) are set, if need. NOTE: This cartridge is fully turned out at the factory. RC388.ai No Stand Zone 1 ft. (4 m) dia. Long Arm Cylinder ADJUSTMENT PROCEDURE IMPORTANT: Check that V and V6 are completely turned out (counterclockwise) before adjustment process. IMPORTANT: Check truck tank to make sure it is filled. 1 Install the pressure gauge (Cascade Pressure Test Kit ) in the long arm clamp cylinder gauge port. With or with out a load, fully close arms. Adjust the Starting Pressure (V1) cartridge so that a light load is not damaged or over clamped and the heaviest load does not slip upon hoisting. Turn the cartridge clockwise (CW) to raise the start pressure. NOTE: For attachments that are retrofitted from three position relief to HFC system and lowest pressure is known, use the lowest pressure as starting pressure. 3 To prevent carriage/attachment from lowering during arm closing, adjust the Static Hoist Pressure (V3) cartridge. This pressure must be less than the Starting Pressure (V1) and high enough to close off static hoist line pressure, without a load. Refer to gauge reading. If gauge pressure does not increase, lower V3 until gauge shows pressure increase. Example: If Starting Pressure (V1) is set at 1000 psi (70 bar), then Static Hoist Pressure (V3) needs to be less than 1000 psi (70 bar). If the carriage lowers when closing the arms of the clamp, increase Static Hoist Pressure (V3) by turning clockwise (CW) until the carriage stops lowering. If the pressure of Static Hoist Pressure (V3) is greater than Starting Pressure (V1), go back to Step, increase Starting Pressure (V1) and restart adjustment sequence. IMPORTANT: Always check the pressure relationship between Starting Pressure (V1) and Static Hoist Pressure (V3) before continuing with the adjustment procedure. Test Port Plug Adjusts clamping pressure after hoisting. Adjust this cartridge last. FINAL PRESSURE R5 V V3 STATIC HOIST PRESSURE Closes connection from hoist line to clamp line. Must be lower then V1. Pressure Gauge V4 V1 MAXIMUM CLAMP PRESSURE Limit maximum clamping pressure. RC0349.eps STARTING PRESSURE Sets starting pressure. Must be higher then V3. HFC VALVE

11 S ETUP CARTRIDGE ADJUSTMENT (CONTINUED) 4 To limit the maximum clamping pressure, Freelift Pressure (V4): A Fully close arms without a load and hoist to maximum lift. Fully extend the mast and hold the lever for seconds. B Lower the mast without unclamping and check the pressure from the gauge in the long arm clamp cylinder. If the pressure exceeds the desired maximum clamp pressure for the heaviest load, turn the cartridge (V4) counterclockwise (CCW) to decrease the maximum clamping pressure. A Fully close arms without a load and hoist to maximum lift. B Lower mast without unclamping RC4780.eps 5 To equalize the hoist pressure between freelift and mainlift: A Clamp an average load and hoist off the ground about 1 ft (30 cm) (freelift). Record the pressure from the gauge in the long arm clamp cylinder. B With the same load at a higher position (mainlift), set load down on another roll in mainlift position. C Reclamp the load, hoist the load and lower to the ground without unclamping. Record the pressure. B In mainlift, set a load down in mainlift position If mainlift pressure is within 150 psi (10.5 bar) of freelift pressure, no adjustment is required. If mainlift pressure is higher than the freelift pressure, increase V5 by turning CW to equalize pressure. If freelift pressure is higher than the mainlift pressure, decrease V5 by turning CCW to equalize pressure. 6 To increase clamp pressure during hoist, clamp a load and hoist. Note the gauge reading in the long arm clamp cylinder pressure. RC4777.eps A Raise load 1 ft. (30 cm) off ground. Record pressure. C Set load down on ground. Do not unclamp load. Record pressure. If the pressure is less than the desired clamp pressure, increase the pressure by turning V6 in CW to match the desired clamp pressure. NOTE: This will effect all clamping pressure. IMPORTANT: Before adjusting V, always reduce V6 first, if the attachment is overclamping. 7 Clamp and hoist the load. Use the chart below to record the initial clamp pressure. If the pressure is too high for the heaviest load, the Final Pressure (V) needs to be adjusted. Turn the cartridge CW to reduce the adjusted clamp pressure. Record the adjusted clamp pressure. NOTE: Adjusting the Final Pressure (V) will effect all clamping pressure. ROLL WEIGHT #1 INITIAL CLAMP PRESSURE ADJUSTED CLAMP PRESSURE Increases freelift hoisting pressure V5 MAST TRUCK HFC V6 EQUALIZER VALVE Increases clamping pressure # #3 AC1911.eps #4 #5 Read from long arm clamp cylinder gauge port R5 9

12 O PERATION Auxiliary Functions Tilt Forward Hoist Down A C WARNING: Truck control handle and attachment function activation shown here conforms to ASME/ANSI B56.1 recommended practices. Failure to follow these practices may lead to serious bodily injury or property damage. End user, dealer and OEMs should review any deviation from the practices for safe operation. B D GA0005.eps LONG ARM (vertical & horizontal positions only) C Release D Clamp Hoist Up Tilt Back ROTATE (Driver s view) A Counterclockwise (CCW) B Clockwise (CW) B SHORT ARM (45-degree position only) C Open D Close D A C D C The HFC system works fundamentally the same as a normal lift truck system when used with a paper roll clamp. Use the following techniques when clamping loads: 1 Clamp arms firmly on the roll. Hold for 1 second to build starting clamp pressure. Lift the load. Clamp pressure will automatically increase according to load weight. 3 If feathering is used to reduce clamp force on light loads, use the same process with HFC. However, it is recommended to use the techniques above for all loads unless absolutely necessary. CAUTION: Develop adequate clamp force to hold the load when feathering. 4 Operation for a split arm clamp with HFC is the same as a solid arm clamp except for the following: HFC should be used with the Cascade full arm travel split arm circuit. Close the free arm fully when handling one roll with one split arm. Full clamp force develops after free arm bottoms. When clamping a full height roll with both split arms, operate the clamp as a solid arm clamp. NOTE: HFC allows lower clamp starting pressures so that light loads can be handled without damage along with heavier loads. Slightly slower arm speed is normal. If roll diameters vary widely with very low starting pressures, the slower arm speed can be corrected with an optional arm overdrive system. Consult Cascade R5

13 T ROUBLESHOOTING WIRE HARNESS Verify the sensor switch, solenoid and relay are working properly. Check the LEDs on the sensor switch and solenoid. When the mast is in freelift, the LEDs will be on. When at mainlift the LEDs will be off. 1 Check fuse. Remove relay, sensor switch and solenoid coil. 3 Check for 1V power between relay socket terminals 30 and 86. If no power, check continuity: 30 and (+) truck battery 86 and ( ) truck battery 4 Check for continuity at all corresponding pins and terminals. 5 Install sensor switch, fixed on a target (switch LED should be illuminated). Check for power at relay socket terminal Test the relay by adding 1V (+) power to 85 and ( ) power to 86. With a meter, check for continuity between 30 and 87. Remove power, verify that there is no continuity between 30 and With the relay installed and the sensor switch fixed on a target (LED illuminated), check for power at the solenoid connector between 1 and. Solenoid connector LED should be illuminated. 8 Plug the coil in, listen for a 'click'. If there is no 'click', remove connector and check for coil resistance of 7. ohms at 60 F (0 C). Full Height Pressure Limiter Kit This kit prevents excessive clamp force in applications where the mast is extended to full height on a regular basis while clamping a load. For LED troubleshooting, check the LEDs on the sensor switch and solenoid. When the mast is below maximum height, the LEDs will be off. When at mast full height, the LEDs will be on. Sensor Switch Solenoid LED Sensor Switch #1 Black DC to DC Converter Black Voltage Filter 1 Solenoid Coil # Red Orange Red Black Orange Switched A Relay Fuse, ATM 5 AMP Ground Truck Battery Truck Fuse Block AC469.eps R5 11

14 T ROUBLESHOOTING CAUTION: Prior to troubleshooting, verify that clamp is working properly and check for defective check valves and cylinder seals. NOTE: When adjusting cartridges, turn in 1/ turn increments. Problem Solution Possible Effect Pad slips on load at start of lift Increase (CW) V1, reclamp May over clamp light roll If pressure in clamp cylinder does not increase after lifting, decrease (CCW) V3 Decrease (CCW) V, reclamp May cause unit to lower during clamping May over clamp after hoisting Load continues to slip after V has been decreased Increase (CW) V5 Load may not hoist (truck and clamp capacity may not be compatible, contact Cascade) Pads crush load before hoisting Decrease (CCW) V1, reclamp May cause pads to slip at hoisting May cause slower arm speed during clamping Pads crush load after hoisting Increase (CW) V, open and reclamp May cause load to slip If problem occurs during freelift, decrease (CCW) V5 May cause load to slip in freelift Load slips when lift truck hits floor bumps or dock plate Decrease (CCW) V, reclamp and hoist May over clamp load Hoist cylinder will not lift with a high capacity load Decrease (CCW) V5 May cause mainlift and freelift to be unbalanced R5

15 T ROUBLESHOOTING Problem Solution Possible Effect of Solution Hoist lowers while closing arms Increase (CW) V3 May not add pressure during hoisting Hoist speed is decreased Decrease (CCW) V5 May have more clamp pressure in mainlift than freelift. Available clamping pressure in freelift will be reduced. Clamped pressure is substantially higher in freelift over mainlift Install switch if not installed Improved accuracy Decrease (CCW) V5 Load may slip in freelift Clamped pressure is substantially lower in freelift over mainlift Increase (CW) V5 May over clamp in freelift Over clamps when mast runs out of travel Increase (CW) V4 May cut off needed clamp pressure on heavy loads Arm speed is too slow during clamping Increase (CW) V1 May over clamp light loads Light loads that require low starting pressure, install optional arm overdrive system Driver may overclamp load if button is not released in time or relief not properly set R5 13

16 P ARTS HYDRAULIC FORCE CONTROL KIT 6 5 No. 1 JIC 4 No. 1 JIC 3 No. 1 O-Ring No O-Ring Relay 7! Truck Fuse Block AC096.eps AC0919.eps AC0919.eps Pressure Test Kit Connector Kit AC470.eps Truck Battery REF QTY PART NO. DESCRIPTION REF QTY PART NO. DESCRIPTION HFC Kit 1V HFC HFC Kit 4V 48V Fuse - 5 amp 1793 Converter and Filter Kit Test Point Fitting, Wire Harness Test Point Fitting, Equalizer Voltage Filter Fitting, Voltage Converter, 4-48V 1V Switch Assembly Pressure Test Kit Switch Mounting Bracket Connector Kit Tank Includes items 1 9. Includes items Includes items 10 & 11. Included in Switch Group R5

17 P ARTS EQUALIZER VALVE AC1913.eps 7 6 REF QTY PART NO. DESCRIPTION Equalizer Body Fitting, Fitting, Solenoid Coil - 1V Fitting, Relief Cartridge R5 15

18 P ARTS SENSOR SWITCH 1 AC174.eps REF QTY PART NO. DESCRIPTION Switch Assembly Bracket Switch R5

19 P ARTS HFC 0! 1 AC184.eps 89 % ^ 3 $ REF QTY PART NO. DESCRIPTION HFC Body Fittings, Fitting, Pressure Sequence Cartridge Pressure Sequence Cartridge Shuttle Fitting, Check Cartridge Seal Kit Relief Cartridge Seal Kit Directional Cartridge Relief Cartridge Fitting, Orifice Fitting, 3 Refer to Glossary for flow requirements R5 17

20 G LOSSARY Clamp Pressure Pressure set to clamp a load. Final Pressure (V) The final HFC adjusted clamp pressure applied when the load is hoisted. Freelift Pressure Pressure in the hoist line when the mast is in freelift state. Hoist /Clamp Pressure (V6) The hoist pressure combined with clamp pressure to hoist a load but keep the load clamped. Mainlift Pressure Pressure in the hoist line when the mast has extended above freelift. Mainlift Pressure (V5), cartridge Increases freelift hoisting pressure. Balances freelift and mainlift hoisting pressure and makes pressure available to clamping circuit. Maximum Clamp Pressure (V4) The maximum pressure set to clamp a load. Overdrive System A system to aid with increasing arm speed and allows an attachment to have higher clamping pressure when breaking out rolls. Starting Pressure (V1) The minimum clamp pressure that will be applied, even on light loads. Static Hoist Pressure (V3) The hoist pressure to achieve prior to hoisting. Total Load Weight The sum of the paper roll weight and clamp weight R5

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22 Do you have questions you need answered right now? Call your nearest Cascade Service Department. Visit us online at AMERICAS Cascade Corporation U.S. Headquarters 01 NE 01st Fairview, OR Tel: 800-CASCADE (7-33) Fax: Cascade Canada Inc Timberlea Blvd. Mississauga, Ontario Canada L4W-4M6 Tel: Fax: Cascade do Brasil Praça Salvador Rosa, 131/141-Jordanópolis, São Bernardo do Campo - SP CEP Tel: Fax: EUROPE-AFRICA Cascade Italia S.R.L. European Headquarters Via Dell Artigianato Vago di Lavagno (VR) Italy Tel: Fax: Cascade (Africa) Pty. Ltd. PO Box 65, Isando A Steel Road Sparton, Kempton Park South Africa Tel: Fax: ASIA-PACIFIC Cascade Japan Ltd. -3, -Chome, Kukuchi Nishimachi Amagasaki, Hyogo Japan, Tel: Fax: Cascade Australia Pty. Ltd Ipswich Road Rocklea, QLD 4107 Australia Tel: Fax: Cascade Korea 11B 9L Namdong Ind. Complex, Gojan-Dong Namdong-Ku Inchon, Korea Tel: Fax: Cascade New Zealand 15 Ra Ora Drive East Tamaki, Auckland New Zealand Tel: Fax: Cascade-Xiamen No. 668 Yangguang Rd. Xinyang Industrial Zone Haicang, Xiamen City Fujian Province P.R. China Tel: Fax: Sunstream Industries Pte. Ltd. 18 Tuas South Street 5 Singapore Tel: Fax: Cascade India Material Handling Private Limited No 34, Global Trade Centre 1/1 Rambaugh Colony Lal Bahadur Shastri Road, Navi Peth, Pune (Maharashtra) India Phone: Fax: c Cascade Corporation Part Number R5