Gehl SL6620 Skid Steer Loader Service Repair Manual

Table of Content SL6620 Manual

Section 1 Introduction

• Torque Values
• Abbreviations

Section 2 Specifications

• General
• Engine

Section 3 Safety

Section 4 Decals

• General Information
• New Decal Application
• Decal Locations
• General Information
• New Decal Application

Section 5 Lubrication

• General Information
• Oils
• Chaincases
• Engine Crankcase
• Hydraulic Oil Reservoir
• Planetary Gearcase
• Greasing
• Engine Oil Viscosity Index
• Hydrostatic Oil Viscosity Index

Section 6 Chassis

• Description
• General Information
• Overhead Guard
• In-Seat Safety Switch – Before S.N. 2651
• In-Seat Safety Switch – After S.N. 2650
• Seat
• Restraint Bar Switch
• Lift Arm Assembly
• Attachment Assembly
• Floor Plate
• Bottom Covers
• Consoles
• Access Cover
• Fuel Tank

Section 7 Drive

• Brakes
• Disc Brake Adjustment
• Brake Pad Replacement
• Brake Cables
• Traction Drive T-Bar
• Neutral Adjustment
• Servo Adjustment
• Take-Up Rods
• Control Rods
• Pivot Shaft and Torsion Tube
• T-Bar Assembly
• Lift/Tilt T-Bar
• Control Linkage Adjustment
• Control Rods
• T-Bar Assembly
• Throttle Assembly
• Hand Throttle Adjustment
• Throttle Cable Adjustment
• Throttle Cable
• Throttle Handle Assembly and Throttle Rod
• Drive Chains
• Adjustment
• Removal
• Installation
• Axle and Sprocket
• Removal
• Installation
• Axle and Wheel Bearings
• Disassembly
• Assembly
• Idler Sprockets and Bearings
• Removal
• Installation

Section 8 Hydrostatic System

• Introduction
• Neutral
• Forward
• Reverse
• Turns
• Troubleshooting
• Hydrostatic Testing
• Drive Motor
• Charge Pressure
• Service
• Tandem Pump
• Tandem Pump-Valve Block
• Pump Drive Coupling
• Hydrostatic Drive Motor

Section 9 Hydraulic System

• Introduction
• Cylinders
• Hydraulic Hoses and Tubing
• Electrical Components
• Troubleshooting
• Hydraulic Testing
• Control Valve Relief Pressure
• Lift and Tilt System Pump
• Tilt Cylinders
• Lift Cylinders
• Service
• Tilt Cylinders
• Lift Cylinders
• Lift and Tilt Cylinders Breakdown
• Lift and Tilt System Gear Pump
• Servos
• Seal Kit Installation
• Hydraulic Oil Filter
• Hydraulic Oil Strainer
• Self Leveling Valve
• Differential Relief Valve
• Planetary Gearcase
• Solenoid Valve
• Control Valve
• Auxiliary Hydraulic Tubes
• Auxiliary Hydraulic Control Cables

Section 10 Electrical System

• Troubleshooting

Section 11 Engine

• Introduction
• Ordering Engine Parts
• Troubleshooting
• Service
• Engine Oil Filter
• Air Cleaner
• Air Cleaner Element
• Battery
• Starter
• Engine Exhaust Assembly
• Fan Belt Adjustment
• Radiator and Oil Cooler
• Engine
• Torque Specifications for Standard Machine Hardware