Gehl Skid Loader 4625 Workshop Manual 907212 – PDF DOWNLOAD

Gehl Skid Loader 4625 Workshop Manual 907212 – PDF DOWNLOAD

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Gehl Skid Loader 4625 Workshop Manual 907212 – PDF DOWNLOAD

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Pages : 306
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Gehl Skid Loader 4625 Workshop Manual 907212 – PDF DOWNLOAD

SN 17248 and Later

Specifications 1
General Information ……………………………………………………………………………………………………………………….. 1-1
Standard Features …………………………………………………………………………………………………………………………… 1-1
Tire Options ………………………………………………………………………………………………………………………………….. 1-1
Buckets & Capacities ……………………………………………………………………………………………………………………… 1-1
Dimensions …………………………………………………………………………………………………………………………………… 1-2
Safety 2
General Information ……………………………………………………………………………………………………………………….. 2-1
Signal Words ………………………………………………………………………………………………………………………………… 2-1
Additional Safety Reminders …………………………………………………………………………………………………………… 2-1
Mandatory Safety Shutdown Procedure ……………………………………………………………………………………………. 2-2
Lift Cylinder Mechanical Lock ……………………………………………………………………………………………………….. 2-3
Cylinder Lock Engagement …………………………………………………………………………………………………………….. 2-3
Cylinder Lock Disengagement ………………………………………………………………………………………………………… 2-4
Overhead Guard – Raising ………………………………………………………………………………………………………………. 2-5
Overhead Guard – Lowering ……………………………………………………………………………………………………………. 2-6
Relieving Hydraulic Pressure ………………………………………………………………………………………………………….. 2-6
Loader Raising Procedure ………………………………………………………………………………………………………………. 2-7
Loader Lowering Procedure ……………………………………………………………………………………………………………. 2-7
Safety Decals ………………………………………………………………………………………………………………………………… 2-8
Decals 3
New Decal Application …………………………………………………………………………………………………………………… 3-1
Paint Finish …………………………………………………………………………………………………………………………………… 3-1
Decal List ……………………………………………………………………………………………………………………………………… 3-2
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Table of Contents SL4625
Lubrication 4
General Information ………………………………………………………………………………………………………………………. 4-1
Hydraulic Oil Reservoir …………………………………………………………………………………………………………………. 4-1
Crankcase Oil ……………………………………………………………………………………………………………………………….. 4-1
Chaincases ……………………………………………………………………………………………………………………………………. 4-2
Planetary Gearcase Oil …………………………………………………………………………………………………………………… 4-2
Grease Fitting Locations ………………………………………………………………………………………………………………… 4-3
Chassis 5
Introduction ………………………………………………………………………………………………………………………………….. 5-1
Overhead Guard Removal ………………………………………………………………………………………………………………. 5-1
Overhead Guard Installation …………………………………………………………………………………………………………… 5-4
Seat Removal ………………………………………………………………………………………………………………………………… 5-6
Seat Installation …………………………………………………………………………………………………………………………….. 5-7
Restraint Bar Removal …………………………………………………………………………………………………………………… 5-7
Restraint Bar Installation ………………………………………………………………………………………………………………… 5-8
Lift Arm Removal / Disassembly ……………………………………………………………………………………………………. 5-8
Lift Arm Installation/ Assembly …………………………………………………………………………………………………… 5-12
Lift Arm Bushing Replacement …………………………………………………………………………………………………….. 5-15
Quick-Tach Removal …………………………………………………………………………………………………………………… 5-16
Quick-Tach Installation ………………………………………………………………………………………………………………… 5-17
Lift Arm Stop Installation/ Adjustment …………………………………………………………………………………………. 5-18
T-Bar I Pump Cover Removal & Installation – Before SIN 19720 ……………………………………………………… 5-20
T-Bar I Pump Cover Removal & Installation – SIN 19720 & later …………………………………………………….. 5-21
Floor Cover Removal …………………………………………………………………………………………………………………… 5-22
Floor Cover Installation ……………………………………………………………………………………………………………….. 5-23
Bottom Cover Removal. ……………………………………………………………………………………………………………….. 5-24
Bottom Cover Installation …………………………………………………………………………………………………………….. 5-24
Fuel Tank Removal ……………………………………………………………………………………………………………………… 5-24
Fuel Tank Installation …………………………………………………………………………………………………………………… 5-25
Fuel Level Sender Removal ………………………………………………………………………………………………………….. 5-26
Fuel Level Sender Installation …………………………………….. , ………………………………………………………………… 5-26
Rear Grill Removal ……………………………………………………………………………………………………………………… 5-27
Rear Grill Installation …………………………………………………………………………………………………………………… 5-28
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SL4625 Table of Contents
Drive 6
Introduction …………………………………………………………………………………………………………………………………… 6-1
Drive Chain Adjustment ………………………………………………………………………………………………………………… 6-2
Drive Chain Removal …………………………………………………………………………………………………………………….. 6-3
Drive Chain Installation …………………………………………………………………………………………………………………. 6-4
Axle & Sprocket Removal ………………………………………………………………………………………………………………. 6-5
Axle & Sprocket Installation …………………………………………………………………………………………………………… 6-5
Axle & Wheel Bearing Disassembly ………………………………………………………………………………………………… 6-6
Axle & Wheel Bearing Assembly ……………………………………………………………………………………………………. 6-7
Idler Sprocket & Bearing Removal ………………………………………………………………………………………………….. 6-8
Idler Reassembly and Installation ……………… , …………………………………………………………………………………. 6-10
Planetary Gearcase Removal …………………………………………………………………………………………………………. 6-12
Planetary Gearcase Installation ……………………………………………………………………………………………………… 6-14
Planetary Gearcase Disassembly ……………………………………………………………………………………………………. 6-16
Planetary Gearcase Assembly ……………………………………………………………………………………………………….. 6-19
Controls 7
Introduction …………………………………………………………………………………………………………………………………… 7-1
T-Bar Removal ……………………………………………………………………………………………………………………………… 7-1
T-Bar Installation …………………………………………………………………………………………………………………………… 7-4
T-Bar Position Adjustment. …………………………………………………………………………………………………………….. 7-6
T-Bar Tracking Adjustment, Traction Controls …………………………………………………………………………………. 7-8
Left T-Bar Assembly, T-Bar Controls ……………………………………………………………………………………………… 7-9
Left T-Bar Assembly, Hand/ Foot Controls ……………………………………………………………. : …………………….. 7-12
Right T-Bar Assembly ………………………………………………………………………………………………………………….. 7-14
Crosstube Removal, T-Bar Controls ………………………………………………………………………………………………. 7-16
Crosstube Installation, T-Bar Controls ……………………………………………………………………………………………. 7-19
Crosstube Removal, Hand/ Foot Controls ………………………………………………………………………………………. 7-20
Crosstube Installation, Hand/ Foot Controls …………………………………………………………………………………… 7-23
Neutral Centering Mechanism Removal …………………………………………………………………………………………. 7-25
Neutral Centering Mechanism Installation ………………………………………………………………………………………. 7-27
Neutral Centering Adjustment. ……………………….•…………………………………………………………………………….. 7-30
Pump Arm Removal …………………………………………………………………………………………………………………….. 7-32
Pump Arm Installation ………………………………………………………………………………………………………………….. 7-32
Lift/ Tilt Control Removal, T-Bar Controls ……………………………………………………………………………………. 7-33
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Lift/ Tilt Control Installation, T-Bar Controls ………………………………………………………………………………… 7-34
Lift/ Tilt Control Adjustment, T-Bar Controls ……………………………………………………………………………….. 7-34
Lift/ Tilt Control Removal, Hand/Foot Controls …………………………………………………………………………….. 7-35
Lift/ Tilt Control Installation, Hand/ Foot Controls ………………………………….. , ………………………………….. 7-36
Lift/ Tilt Control Adjustment, Hand/ Foot Controls ………………………………………………………………………. 7-37
Auxiliary Hydraulics Cable Removal, T-Bar Controls …………………………………………………………………….. 7-38
Aux. Hydraulics Cable Installation, T-Bar Controls ………………………………………………………………………… 7-40
Auxiliary Hydraulics Cable Removal, Hand/Foot Controls ……………………………………………………………… 7-41
Aux. Hydraulics Cable Installation, Hand/Foot Controls …………………………………………………………………. 7-42
Aux. Hydraulics Cable Adjustment, T-Bar Controls ……………………………………………………………………….. 7-44
Aux. Hydraulics Cable Adjustment, Hand/ Foot Controls ……………………………………………………………….. 7-45
Hand Throttle Installation …………………………………………………………………………………………………………….. 7-46
Foot Throttle Installation, T-Bar Controls ………………………………………………………………………………………. 7-48
Throttle Link Assembly Installation, T-Bar Controls ……………………………………………………………………… 7-49
Throttle Link Adjustment, T-Bar Controls ……………………………………………………………………………………… 7-50
Hand Throttle Limit Adjustment …………………………………………………………………………………………………… 7-52
Hand Throttle Tension Adjustment ……………………………………………………………………………………………….. 7-53
Parking Brake Adjustment – Before SIN 19720 ………………………………………………………………………………. 7-54
Parking Brake Pad Replacement – Before SIN 19720 ………………………………………………………………………. 7-56
Hydraulic Brake Solenoid Valve Removal & Installation ………………………………………………………………… 7-60
Hydraulic Brake Solenoid Valve Disassembly & Reassembly ………………………………………………………….. 7-62
Hydrostatic System 8
Introduction …………………………………………………………………………………………………………………. , ……………… 8-1
Troubleshooting Guide ………………………………………………………………………………………………………………….. 8-2
Case Drain Test …………………………………………………………………………………………………………………………….. 8-6
Charge Pressure Test & Adjustment – Before SIN 19720 …………………………………………………………………… 8-8
Charge Pressure Test – SIN 19720 & later ……………………………………………………………………………………… 8-10
Hydrostatic Lockout Valves …………………………………………………………………………………………………………. 8-11
Tandem Pump Relief Valves ………………………………………………………………………………………………………… 8-12
Upper Pump Support Removal …………………………………………………………………………………………………….. 8-13
Upper Pump Support Installation ………………………………………………………………………………………………….. 8-14
Tandem Pump Removal.. ……………………………………………………………………………………………………………… 8-15
Tandem Pump Installation …………………………………………………………………………………………… : ……………… 8-19
Pump Drive Coupling Removal.. …………………………………………………………………………………………………… 8-22
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SL4625 Table of Contents
Pump Drive Coupling Installation ………………………………………………………………………………………………….. 8-23
Drive Motor Removal- Before SIN 19720 ……………………………………………………………………………………… 8-25
Drive Motor Installation – Before SIN 19720 ………………………………………………………………………………….. 8-26
Drive Motor Removal – SIN 19720 & later. …………………………………………………………………………………….. 8-28
Drive Motor Installation – SIN 19720 & later ………………………………………………………………………………….. 8-30
Hydraulic System 9
Introduction …………………………………………………………………………………………………………………………………… 9-1
Troubleshooting Guide …………………………………………………………………………………………………………………… 9-2
Lift/ Tilt Control Valve Relief Pressure Test ……………………………………………………………………………………. 9-5
Tilt Cylinder Test. ………………………………………………………………………………………………………………………….. 9-7
Self-Leveling Valve Test ………………………………………………………………………………………………………………… 9-8
Lift Cylinder Test ………………………………………………………………………………………………………………………….. 9-9
Solenoid Valve Test ……………………………………………………………………………………………………………………… 9-11
Hydraulic Oil Filter Element Replacement …………………………………………………………………………………….. 9-14
Case Drain Oil Filter Element Replacement ……………………………………………………………………………………. 9-15
Hydraulic Oil Strainer Removal and Cleaning …………………………………………………………………………………. 9-16
Tilt Cylinder Removal ………………………………………………………………………………………………………………….. 9-19
Tilt Cylinder Installation ………………………………………………………………………………………………………………. 9-20
Lift Cylinder Removal ………………………………………………………………………………………………………………….. 9-22
Lift Cylinder Installation ………………………………………………………………………………………………………………. 9-23
Lift/ Tilt Cylinder Disassembly …………………………………………………………………………………………………….. 9-24
Lift/ Tilt Cylinder Assembly ………………………………………………………………………………………………………… 9-26
Gear Pump Removal …………………………………………………………………………………………………………………….. 9-27
Gear Pump Installation …………………………………………………………………………………………………………………. 9-28
Self-Leveling Valve Removal ……………………………………………………………………………………………………….. 9-30
Self-Leveling Valve Installation …………………………………………………………………………………………………….. 9-31
Self-Leveling Valve Adjustment ……………………………………………………………………………………………………. 9-32
Lift/ Tilt Solenoid Valve Removal & Installation ……………………………………………………………………………. 9-34
Lift/ Tilt Solenoid Valve Disassembly & Reassembly …………………………………………………………………….. 9-35
Lift/ Tilt Control Valve Removal ………………………………………………………………………………………………….. 9-36
Lift/ Tilt Control Valve Installation ………………………………………………………………………………………………. 9-37
Auxiliary Hydraulics Valve Removal …………………………………………………………………………………………….. 9-39
Auxiliary Hydraulics Valve Installation ………………………………………………………………………………………….. 9-40
Hydraulic Oil Cooler Removal ………………………………………………………………………………………………………. 9-41
Hydraulic Oil Cooler Installation …………………………………………………………………………………………………… 9-42
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Hydraulic Oil Cooler Removal SL4625DX Only ……………………………………………………………………………. 9-44
Hydraulic Oil Cooler Installation SL4625DX Only …………………………………………………………………………. 9-45
Hydraulic System Schematic, SL4625 – Before SIN 19720 ………………………………………………………………. 9-46
Hydraulic System Schematic, SL4625 – SIN 19720 & later ……………………………………………………………… 9-48
Hydraulic System Schematic, SL4625SX – Before SIN 19720 …………………………………………………………. 9-50
Hydraulic System Schematic, SL4625SX – SIN 19720 & later …………………………………………………………. 9-52
Hydraulic System Schematic, SL4625DX- Before SIN 19720 …………………………………………………………. 9-54
Hydraulic System Schematic, SL4625DX- SIN 19720 & later ………………………………………………………… 9-56
Electrical System 10
Description of Operation ………………………………………………………………………………………………………………. 10-1
Troubleshooting ………………………………………………………………………………………………………………………….. 10-2
Pin Measurement Procedure …………………………………………………………………………………………………………. 10-4
Pin Voltage Table ………………………………………………………………………………………………………………………… 10-5
Seat Switch Removal / Installation ………………………………………………………………………………………………… 10-6
Restraint Bar Switch Removal / Installation …………………………………………………………………………………… 10-7
Instrument Panel Wiring Schematic ………………………………………………………………………………………………. 10-8
Electrical System Schematic – Before SIN 19161 ………………………………………………………………………….. 10-10
Electrical System Schematic – SIN 19161 to 19719 ……………………………………………………………………….. 10-12
Electrical System Schematic – SIN 19720 & later. …………………………………………………………………………. 10-14
Engine 11
Introduction ………………………………………………………………………………………………………………………………… 11-1
Troubleshooting Guide ………………………………………………………………………………………………………………… 11-2
Oil Filter Removal ………………………………………………………………………………………………………………………. 11-4
Oil Filter Installation ……………………………………………………………………………………………………………………. 11-4
Air Filter Assembly Removal I Installation …………………………………………………………………………………….. 11-5
Air Filter Element Removal / Installation ………………………………………………………………………………………. 11-6
Air Filter Element Cleaning ………………………………………………………………………………………………………….. 11-7
Battery Removal/ Installation ………………………………………………………………………………………………………. 11-8
Starter Removal / Installation ……………………………………………………………………………………………………….. 11-9
Exhaust Assembly Removal··············································:········································································ 11-10
Exhaust Assembly Installation ……………………………………………………………………………………………………. 11-11
Fan Belt Adjustment ………………………………………………………………………………………………………………….. 11-12
Radiator Removal ……………………………………………………………………………………………………………………… 11-13
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SL4625 Table of Contents
Radiator Installation ……………………………………………………………………………………………………………………. 11-15
Fan Shroud Adjustment ………………………………………………………………………………………………………………. 11-16
Fuel Shut-Off Timer Module Removal / Installation ………………………………………………………………………. 11-17
Fuel Shutdown Solenoid Replacement & Adjustment… ………………………………………………………………….. 11-18
Engine Removal. ………………………………………………………………………………………………………………………… 11-20
Engine Installation ……………………………………………………………………………………………………………………… 11-27
Remote Oil Filter Removal & Installation …………………………………………………………………………………….. 11-34
Brake Switch & Solenoid Wiring, Removal & Installation ……………………………………………………………… 11-35
Index 12