Hyster D174 Service & Repair Manual Download | Manualshive

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Summary of Contents for D174

Page 1: ...Hyster D174 R30XMS2 Forklift...

Page 2: ...00XL S135 155XL S135 155XL2 B024 C024 S3 00 5 50E S60 120E H60 110E H360 620B H16 00 30 00C H360 650C H36 00 48 00C E H800 1050C E D117 H7 00 12 50H H150 275H H13 50 16 00B H300 350B H32 00 42 00B H70...

Page 3: ...condition Always use HYSTER APPROVED parts when making repairs Replacement parts must meet or exceed the specifications of the original equipment manufacturer Make sure all nuts bolts snap rings and...

Page 4: ...ore information Please click here Then get the complete manual NOTE If there is no response to click on the link above please download the PDF document first and then click on it Have any questions pl...

Page 5: ...50XL S70 120XL D004 S3 50 5 50XM S70 120XM E004 F004 H3 50 5 00XL H70 110XL S30 60E ES S40 50F H40 60H H2 00 3 00J H40 60J H16 00 30 00C H360 650C P40 50A A119 S6 00 7 00XL S135 155XL S135 155XL2 B024...

Page 6: ...THE QUALITY KEEPERS HYSTER APPROVED PARTS...

Page 7: ...g or rear cover The front cover has the seal for the input shaft The input shaft is connected to a driven sprocket cou pling or gear by splines or a key All the gear pumps have devices that keep the t...

Page 8: ...il pressure prevents air leaks through the front seal and makes sure there is oil to the bearings When the pressure increases to the spring setting the ball moves from its seat and oil flows to the in...

Page 9: ...p failure The pump bearings gears and shafts also wear Many service persons do not repair a worn pump because the cost of repairs can be greater than the cost of a new pump The seals can be replaced i...

Page 10: ...n the outlet chamber Make sure you make careful notes of the location and orientation of the parts and seals during disassem bly Some of the parts are similar but not exactly the same and it can be di...

Page 11: ...30 O RINGS 31 CAPSCREW AND WASHER 32 CAPSCREW AND WASHER Figure 6 Hydraulic Gear Pump Single Stage INSPECT 1 Inspect outside edges of gear teeth for grooves or scratches If the edges of the gear teeth...

Page 12: ...the inlet side of the gear chamber If a 0 13 mm 0 005 in thick ness gauge fits between the straight edge and the housing the gear housing must be replaced If the gear housing is worn inspect bearings...

Page 13: ...mm 0 002 in it must be replaced Replace thrust plate if it has grooves or holes Dirty oil causes the thrust plate to wear near where the gears engage Small holes on the outlet side the thrust plate a...

Page 14: ...piston moves freely in the bore Look at poppet and seat for damage The springs must not be broken or bent Inspect O rings for damage Make sure orifices are open CAUTION Do not permit dirty oil to ente...

Page 15: ...al Install seal in outer groove in front cover Install bearing blocks in the same positions from which they were removed 5 Install gears and bearing blocks in pump cham ber housing Make sure gear hous...

Page 16: ...pump with your hand If pump is hot it has a problem If pump is not hot then increase engine speed to high limit Momentarily increase pressure to relief setting Repeat this procedure for 3 minutes 7 L...

Page 17: ...ull CAUTION This test must be done quickly to prevent the hydraulic tank from becoming empty Do not operate the engine when there is no oil in the hydraulic tank 2 The needle valve must be fully open...

Page 18: ...amount of oil check for air in the system Run the engine until the oil is warm Remove the filter head and look into the tank If there are bubbles in the oil air is in the hydraulic system The most co...

Page 19: ...drive Relief valve is set wrong or is dam aged Adjust relief valve setting Replace relief valve if it is damaged Screen in hydraulic tank has a re striction Clean hydraulic tank screen Pump is loose...

Page 20: ...s too hot Relief valve is set wrong or is damaged Flow regulator valve is damaged Replace flow regulator valve Leak inside of a hydraulic cylinder Repair hydraulic cylinder Worn or damaged hydraulic p...

Page 21: ...ed correctly in its mount Install pump drive correctly Pump is operating too hot Check hydraulic oil level and fill to correct level Air in the hydraulic system Low oil level in hydraulic tank Fill hy...

Page 22: ...________________________________________ ____________________________________________________________ ____________________________________________________________ _____________________________________...

Page 23: ......

Page 24: ...TECHNICAL PUBLICATIONS 1900 SRM 97 10 03 7 03 10 02 11 01 4 97 9 93 3 88 11 82 9 81 2 79 Printed in U S A...

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