Forward and Reversing Vibrating Plate LH 300/700. Work Shop Manual WLHALLEN1, October 2001

Transcription

1 Forward and Reversing Vibrating Plate LH 00/700 Work Shop Manual WLHALLEN, October 00 These instructions apply from: LH 00 S/N *00608* LH 700 S/N *700078* WLHALLEN We reserve the right to change specifications without notice. Printed in Sweden.

2 CONTENTS Page Technical data... Other service information... Principles of operation...4 Hydraulic diagram LH Hydraulic diagram LH Hydraulic System...7 Eccentric housing identification - Control shaft LH Assembly of eccentric element - Drive shaft LH Assembly of eccentric element - Piston LH Assembly of eccentric element - Hydralic engine LH Eccentric housing assembly LH Marking of eccentric element... Assembly of eccentric element - Control shaft LH Assembly of eccentric element - Drive shaft LH Assembly of eccentric element - Eccentric Element LH Assembly of eccentric element - Piston LH Assembly of eccentric element - Hydralic engine LH Eccentric housing assembly LH Check eccentric element oil...9 Troubleshooting...0 WARNING SYMBOLS WARNING Safety instructions Personal safety CAUTION Special caution Machine or component damage WLHALLEN

3 TECHNICAL DATA Model Engine Engine Fuel tank Engine oil Hydraulic Eccentric RPM capacity capacity tank capacity shaft lubrication lit. (qts) lit. (qts) lit. (qts) lit. (qts) LH 00 Honda GX ,0 (6,), (,6) 9 (0,) 0,5 (0,5) LH 00 Hatz B0 500, (,6) 9,0 (0,) 0,5 (0.5) LH 700 Hatz D90V 000 7,0 (7,4),9 (,0) 8,0 (9,6),5 (,59) OTHER SERVICE INFORMATION LH 00 LH 700 Engine oil SAE 5W-40 SAE 5W-40 Hydraulic oil Shell Tellus TX68 Shell Tellus TX68 Bio hydraulic fluid Shell Naturelle HF-E46 Shell Naturelle HF-E46 Eccentric housing SAE 5W-40 SAE 5W-40 Grease LGHQ /50 LH 00 LH 700 Hyd. pressure 0,5 MPa (5 psi) 8,0 bar (6 psi) Tightening Torque (oiled) - Housing Mx ,8 Nm(77, lb.ft) M6x Nm (89 lb.ft) M6x Nm (89 lb.ft) - Ecc. weight 70 Nm (5 lb.ft) 70 Nm (5 lb.ft) Loctite Bolts locked with Loctite 4 Sealing surfaces Loctite 574 Eccentric weight Loctite 7 WLHALLEN

4 PRINCIPLES OF OPERATION The vibrations of a reversable plate compactor are generated by counter-rotating eccentric weights located in a housing and bolted directly to the bottom plate. The housing is centrally mounted to the bottom plate and the eccentric weights can be aligned to change the "direction of vibration", this allows forward motion, stand still and reverse motion. Changing the direction of travel is done hydraulically with a single lever at the operator handle. Fig. Direction of vibration The hydraulic pump is mounted on the engine. The pump supplies pressure to move the piston in the vibration shaft. When the piston is fully open, weights changed over, the machine moves forward. To change direction, the pump flow goes direct to the reservoir. A return spring in the vibration shaft presses back the piston that changes over the weights, and the machine moves in reverse Fig. Eccentric weights. Hydraulic pump. Piston. Hydraulic engine 4. Control shaft 5. Return spring 6. Driven shaft 4 WLHALLEN

5 HYDRAULIC DIAGRAM (LH 00) Fig. Hydraulic diagram. Valve. Hydraulic engine. Changeover cylinder 4. Manifold block 5. Hydraulic filter 6. Airfilter 7. Hydraulic tank 8. Hydraulic pump WLHALLEN 5

6 HYDRAULIC DIAGRAM (LH 700) Fig. 4 Hydraulic diagram. Solenoid valve. Reverse. Solenoid valve. Forward. Solenoid valve. Vibration 4. Valve block 5. Test nipple 6. Hydraulic pump 7. Hydraulic filter 8. Changeover cylinder 9. Airfilter 0. Hydraulic engine. Hydraulic tank 6 WLHALLEN

7 HYDRAULIC SYSTEM Checking hydraulic tank oil level.. The oil level should be at the middle of the sight glass. Top off as required. Use specified oil only. Fig. 5 Hydraulic system. Oil sight glass. If oil level is low, check connections and hoses.. No leakage from connections and hoses. Check if there is oil in the eccentric housing. 4. If there is hydraulic fluid in the eccentric housing. Inspect the gaskets of the changeover cylinder (forward/reverse). Fig. 6 Hydraulic system LH 00 Fig. 7 Hydraulic system LH 700 WLHALLEN 7

8 ECCENTRIC HOUSING IDENTIFICATION LH 00 NOTE. The eccentric housing is shown bottom up. Left side Right side Left side Front Right side Fig. 8 Eccentric housing. Drive shaft.hydraulic engine. Control shaft LH 700 NOTE. The eccentric housing is shown bottom up. Left side Right side Left side Front Right side Fig. 9 Eccentric housing. Drive shaft. Hydraulic engine. Control shaft 8 WLHALLEN

9 ASSEMBLY OF ECCENTRIC ELEMENT Control shaft LH 00 Left side 4 5. Fit bearings on control shaft s left side and driven shaft s right side.. Place control shaft s eccentric weight () in housing.. Fit bearings () in sleeve () and place in housing with gear next to housing right side. Fig. 0 Right side Control shaft Control shaft. Eccentric weight. Bearing. Sleeve 4. Control shaft 5. Spacer 4. Fit inner bearing race and snap ring on control shaft (4) left side. Place shaft in housing. 5. Fit spacer (5) on shaft. 6. Fit bearing, inner race and snap ring, check shaft end play. 7. Clean inside of control shaft. 8. Fit piston () in shaft. 9. Fit pin () through the groove in the sleeve, the groove in the shaft and piston. Make sure the groove in the pin is center of shaft. 0. Fit set screw () to lock pin () in position. Use Loctite 4. Left side Right side. Fit spring (4), stop (5) and snap ring (6) in the shaft.. Check operation of spring and sleeve Fig. Control shaft. Piston. Pin. Screw 4. Spring 5. Stop 6. Snap ring WLHALLEN 9

10 ASSEMBLY OF ECCENTRIC ELEMENT Drive shaft Shown bottom up. 5 Front LH 00. Place driven shaft () with gear next to housing right side.. Adjust the gearwheels so that the marks coincide and then lock the gearwheels. Right side Left side 4. Fit bearing (), inner race () and snap ring (4) on driven shaft left side. 4. Fit spacer (6), inner race and snap ring on driven shaft right side. 5. Check driven shaft end play, this can be done by carefully hitting the shaft with a mallet. Fig. Drive shaft. Drive shaft. Bearing. Inner race 4. Snap ring 5. Spacer Shown bottom up.. Lock the eccentric weight () of the vibration shaft with screw Mx0 8.8 and washer. Torque-tighten the eccentric weight at 70 Nm. Lock using Loctite 70.. Fit the eccentric weight () of the drive shaft. Use screw Mx and washer. Torque-tighten the eccentric weight at 70 Nm. Lock using Loctite 70.. Fit the cylinder () on the left side. Seal with Loctite 574. Use screw M6x0 8.8 and Nordlock locking washer. Fig. Eccentric Element,. Eccentric weight. Cylinder 4. Fit the bearing covers on the right side. Use screw M6x0 8.8 and Nordlock locking washer. 0 WLHALLEN

11 ASSEMBLY OF ECCENTRIC ELEMENT Piston LH Install the snap ring () on the shaft.. Install the bearing () on the shaft.. Install 0 pairs of disc spring washers () see diagram. Fit spacer (4) over the washers. 4. Install the second bearing (5) on the shaft. 5. Install the snap ring. Fig. 4 Piston assembly. Snap ring. Bearing. Disc spring washer 4. Spacer 5. Snap ring. Install shaft in the piston () with snap ring (). Fig. 5 Piston assembly. Piston. Snap ring Sealing assembly LH 00. Assemble guide ().. Install shaft seal (), washer (), pair of washers (0) and lock with snap ring (9). 9 0 Fig. 6 Sealing assembly 9. Snap ring 0. Disc spring washer. Washer. Shaft seal. Guide WLHALLEN

12 ASSEMBLY OF ECCENTRIC ELEMENT Hydraulic engine LH 00. Install the splined sleeve on the engine using Loctite 4. Fig. 7 Hydraulic engine. Splined sleeve. Mount the hydraulic motor () on the bearing cover (). Seal with Loctite 574. Use screw M6x0 8.8 and Nordlock locking washer.. Mount the bearing cover and hydraulic motor on the eccentric housing. Seal with Loctite 574. Use hexagonal socket screw M6x0 8.8 and Nordlock locking washer. Fig. 8 Hydraulic engine. Hydraulic engine. Cover Eccentric housing assembly. Use fluid gasket (Loctite 574) to seal between the eccentric housing and the bottom plate when assembling.. Mount the eccentric housing on the bottom plate. Fix it in position with 8 screws M6x60.9 torque 56 Nm, and screws Mx60.9 torque 04.8 Nm. Secure the screws with Loctite 4. Fig. 9 WLHALLEN

13 MARKING OF ECCENTRIC ELEMENT LH 00/700 5 Fig. 0 Gear 5. Marking the gearwheels LH 00, LH 700 Lock the gearwheels when the marking is in the correct position. WLHALLEN

14 ASSEMBLY OF ECCENTRIC ELEMENT Control shaft LH 700 Left side Right side. Mount 4 bearings in the housing.. Mount inner ring and retainer ring on left side of the vibration shaft and place the shaft in the housing. Fig. Control shaft. Place keys () in the sleeve (). 4. Mount gearwheel () with retainer ring (4) on sleeve () 5. Mount bearings (5) in the sleeve. Punch mark 6. Mount the sleeve on the vibration shaft. NOTE. Center punch mark on gearwheel facing left. Hole Fig.. Sleeve. Key. Gearwheel 4. Snap ring 5. Bearing 4 WLHALLEN

15 ASSEMBLY OF ECCENTRIC ELEMENT Control shaft LH 700. Clean the inside of the vibration shaft.. Insert the piston () in the vibration shaft.. Insert pin () through the sleeve groove, shaft groove and piston. Ensure that the pin groove is at the center of the shaft. Left side Right side 4. Fit stop screw () for pin (). Lock using Loctite Fit inner ring (4) and retainer ring (5) on right side of the shaft. Fig.. Piston. Pin. Stop screw Driven shaft. Fit inner ring () and retainer ring () on drive shaft (), (left side), and place in the housing. Fig. 4. Inner ring. Snap ring. Driven shaft WLHALLEN 5

16 ASSEMBLY OF ECCENTRIC ELEMENT Driven shaft Shown bottom up. LH 700. Place locking rings () and gearwheel () on drive shaft. NOTE. Center punch mark facing left.. Fit key () and set punch marks on the gearwheels opposite each other.. Mount gearwheels and locking ring on shaft. 4. Fit inner ring and locking ring on right side of shaft. Fig. 5 Driven shaft. Snap ring. Gearwheel. Key Eccentric Element Fig. 6 4 Eccentric Element. Eccentric weight. Spring. Stop 4. Snap ring Shown bottom up.. Mount 4 eccentric weights () on shafts. Secure with Loctite 70. NOTE. Chamfer inwards and press against the sleeve. Torque-tighten the eccentric weights at 70 Nm.. Fit spring (), stop () and locking ring (4) in the vibration shaft.. Check functioning of spring and sleeve. 4. Mount cylinder on the drive side. Seal with Loctite 574. Use screw M6x0 8.8 and Nordlock locking washer. 5. Fit the bearing covers on the pump side. Use screw M6x0 8.8 and Nordlock locking washer. 6 WLHALLEN

17 ASSEMBLY OF ECCENTRIC ELEMENT Piston LH 700. Install the snap ring () on the shaft.. Install Radial bearing () on the shaft Install spacer(). 4. Install second axial bearing (4) on the shaft. 5. Install screw (5) washer (6) on the end of the shaft. Fig. 7 Piston assembly. Snap ring. Radial bearing. Spacer 4. Axial bearing 5. Screw 6. Washer. Install shaft in the piston () with snap ring (). Fig. 8 Piston assembly. Piston. Snap ring. Assemble guide (4).. Install shaft seal (), washer () and screw (). 4 Fig. 9 Sealing assembly. Screw. Washer. Shaft seal 4. Guide WLHALLEN 7

18 ASSEMBLY OF ECCENTRIC ELEMENT Hydraulic engine LH 700. Install the splined sleeve on the engine using Loctite 4. Fig. 0 Hydraulic engine. Splined sleeve. Mount the hydraulic motor () on the bearing cover (). Seal with Loctite 574. Use screw M6x0 8.8 and Nordlock locking washer.. Mount the bearing cover and hydraulic motor on the eccentric housing. Seal with Loctite 574. Use hexagonal socket screw M6x0 8.8 and Nordlock locking washer. Fig. Hydraulic engine. Hydraulic engine. Cover Eccentric housing assembly. Place the O ring () in the groove on the bottom plate () and lubricate it with grease (LGHQ /50) before fitting.. Mount the eccentric housing () on the bottom plate. Fix it with 4 screws M6x00.9 torque 56 Nm. Secure the screws with Loctite 4. Fig.. O ring. Bottom plate. Eccentric housing 8 WLHALLEN

19 ASSEMBLY OF ECCENTRIC ELEMENT Filling oil in the eccentric housing. Fill with recommended oil to the right volume.. Tighten oil plug. Fig. Check eccentric element oil. Run the machine until the oil in the eccentric housing becomes warm.. Place a vessel underneath the oil plug. Unscrew the oil plug and tilt slightly, and oil should run from the hole. NOTE. Oil will run out immediately on loosening the plug if the piston gasket of the changeover cylinder is broken. Fig. 4.Oil level plug / oil filler plug WARNING When oil is warm there will be an overpressure in the oil chamber, take care when opening plug. Oil drain plug is placed at the same side as the hydraulic motor. Draining oil from the eccentric housing. Tilt the machine, unscrew the oil plug and drain the oil from the eccentric chamber. Save the oil and dispose of it in an approved manner.. Clean sealing surfaces. Fig. 5 WLHALLEN 9

20 TROUBLESHOOTING Low VPM or machine does not vibrate Checking the connection between engine and pump Check eccentric element The machine is not working at full power. Check oil level in the hydraulic tank. If low and there are no external leaks, check oil level in the eccentric housing. If hydraulic oil has entered the housing, the seal on the piston is damaged and must be replaced. Loosen hydraulic nose near cylinder or below check valve, and check that you have pressure when control valve lever is moved forward. There is pressure only when is stroked forward. If no pressure check the pump. The changeover angle of the eccentric weights is incorrect. Check the wear of the pin fitted through the sleeve on the vibration shaft. When assembling, it is essential that the marks on the gearwheels are in the correct position. The gearwheels are marked with a center punch. There is one mark on one gearwheel and two on the other. 0 WLHALLEN

21 Metso Dynapac AB Box 504, SE-7 Karlskrona, Sweden Phone: , Fax: Web: WLHALLEN