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Related Manuals for Hyundai 20D-7
Summary of Contents for Hyundai 20D-7
- Page 1 SERVICE MANUAL FORKLIFT 20D-7 25D-7 30D-7 33D-7...
- Page 2 CONTENTS SECTION 1 GENERAL Group 1 Safety Hints - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 Group 2 Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-5 Group 3 Periodic Replacement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-13 SECTION 2 REMOVAL AND INSTALLATION OF UNIT...
- Page 3 Group 3 Component Specification - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-10 Group 4 Connector Destination - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-11 Group 5 Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-13 SECTION 8 MAST...
- Page 4 SECTION 8 MAST This section explains the structure of mast, carriage, backrest and forks. The specifications contained in this service manual are subject to change at any time and without any advance notice. Contact your HYUNDAI distributor for the latest information.
- Page 5 Revised edition mark( Any additions, amendments or other changes will When a manual is revised, an edition mark is be sent to HYUNDAI distributors. recorded on the bottom outside corner of the Get the most up-to-date information before you pages.
- Page 6 SECTION 2 REMOVAL AND INSTALLATION OF UNIT Group 1 Structure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1 Group 2 Removal and Installation of Unit - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-2...
- Page 7 SECTION 2 REMOVAL & INSTALLATION OF UNIT GROUP 1 STRUCTURE 9 10 20D7OM21 Mast Transmission 15 Muffler Lift cylinder Torque converter 16 Counterweight Tilt cylinder 10 Engine 17 Radiator Main control valve 11 Steering cylinder 18 Seat Fork 12 Hydraulic pump 19 Overhead guard Front wheel 13 Steering axle (Rear)
- Page 8 GROUP 2 REMOVAL AND INSTALLATION OF UNIT Remove and install following units as explained in the flow chart. 1. MAST REMOVAL Forks Backrest Lower the fork carriage until the forks are approximately 25mm (1in) from the floor. Turn knob up and slide one fork at a time toward the center of the carriage where a Knob notch has been cut in the bottom plate for...
- Page 9 While supporting lift chains, remove nuts and split pin from the anchor bolt. Lift chain Outer mast Split pin 20D7RE05 Pull the chains out of the sheaves and drape them over the front of the carriage. Mast Carriage Lift chain Block 20D7RE06 Slowly raise inner mast upright until mast...
- Page 10 Fasten RING BRG ADJUST. 20D7AXLE065 Measure backlash again. Bachlash of pinion shaft and ring gear is 0.15~0.2mm (0.006~0.008 in) If backlash is wrong, carry out adjusting work. Adjust the left / right of RING BRG ADJUST by one and one clip. 20D7AXLE066 Fit position.
- Page 11 A A ssembly of carrier assembly Pressurize lock pin into drive axle. 20D7AXLE069 Spread sealant on the installation surface of carrier. 20D7AXLE070 Fix assembly guide bar. 20D7AXLE071 Fit carrier at drive axle housing. Spread loctite #5127 on drive axle housing. 20D7AXLE072 Spread loctite #277 on the spring washer bolt.
- Page 12 Temporarily assemble bolt and confirm torque. Tightening torque : 6~7 kgf m (43~51 lbf ft) 20D7AXLE074 RAVELING BRAKE SYSTEM ASSEMBLY Piston assembly Fix large quad ring into brake. 20D7AXLE075 Fix small quad ring into brake. When assembling quad ring, pay attent to chopping. 20D7AXLE076 Spread oil on the piston.
- Page 13 NEUTRAL 10MPa 20D7SS03 The steering wheel is not being operated so control spool(G) does not move. The oil from hydraulic gear pump(1) enters port P of priority valve(2) and the inlet pressure oil moves the spool(D) to the left. Oil flow into LS port to the hydraulic tank(11). So, the pump flow is routed to the main control valve.
- Page 14 LEFT TURN 10MPa 20D7SS04 When the steering wheel is turned to the left, the spool(G) within the steering unit(4) connected with steering column turns in left hand direction. At this time, the oil discharged from the pump flows into the spool(G) within the steering unit(4) through the spool(D) of priority valve(2) and flows to the gerotor(H).
- Page 15 3. MAIN CONTROL VALVE STRUCTURE (4- Spool) 16 15 SECTION H - H SECTION T - T SECTION E - E VIEW G - G VIEW F - F VIEW I - I Port name Size Inlet port 1-1/16-12UNF-2B Outlet port 1-1/16-12UNF-2B 20D7HS07 Lift block assy...
- Page 16 INLET SECTION OPERATION Structure and description (Relief valve piston) Relief valve piston 20D7HS08 Hydrostat plug 14 Relief plug O-ring 16 Relief spring 10 Hydrostat spring 17 Pilot poppet 11 Hydrostat sleeve 28 O-ring 12 Relief piston 29 System relief seat 13 Nut 30 Secondary relief seat...
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