Part No. 57.4400.9219
Rev C, September 2017
Serial Number Range
From GTH12AFM-101
Content:
INTRODUCTION
Important Information 
Revision History
Serial Number Legend
Section 1. SAFETY RULES
General Safety Rules 
Section 2. SPECIFICATIONS
Machine Specifications 
Performance Specifications 
Hydraulic Specifications 
Hydraulic Components Specifications 
Function Manifold Specifications 
Air Conditioner Refrigerant Specifications 
Perkins 1104D-E44TA Engine 
Dana Integral Gear Box 
Dana Axle 
Hydraulic Hose and Fitting Torque Specifications 
Torque Procedure 
SAE and Metric Fasteners Torque Charts 
Section 3. SCHEDULED MAINTENANCE PROCEDURES
Introduction 
Pre-delivery Preparation Report 
Maintenance Inspection Report 
Lubrication Chart 
Checklist A Procedures
A-1 Inspect the Manuals and Decals 
A-2 Perform Pre-operation Inspection 
A-3 Perform Function Tests 
A-4 Lubricate the Boom 
A-5 Perform Engine Maintenance 
A-6 Safety Devices 
A-7 Inspect the Pre Filter 
A-8 Perform Axle Maintenance 
A-9 Perform 30 Day Service 
A-10 Perform Axle Maintenance 
A-11 Perform Gear Box Maintenance 
A-12 Perform Axle Maintenance 
A-13 Perform Engine Maintenance 
A-14 Perform Engine Maintenance 
Checklist B Procedures
B-1 Inspect the Electrical Wiring 
B-2 Gear Box Oil Level 
B-3 Check the Exhaust System 
B-4 Perform Axle Maintenance 
B-5 Inspect the Tires, Wheels and Lug Nut Torque 
B-6 Perform Hydraulic Oil Analysis 
B-7 Check the Boom Wear Pads 
B-8 Perform Engine Maintenance 
Checklist C Procedures
C-1 Perform Engine Maintenance 
C-2 Perform Engine Maintenance 
C-3 Perform Engine Maintenance 
C-4 Perform Axle Maintenance 
C-5 Inspect and Lubricate the Sequencing Chains 
Checklist D Procedures
D-1 Inspect the Forks 
D-2 Tighten the Boom Chains 
D-3 Replace the Hydraulic Tank Return Filter Element 
D-4 Change Gear Box Oil 
D-5 Perform Engine Maintenance 
D-6 Perform Axle Maintenance 
D-7 Replace Coolant Filter Element
Checklist E Procedures
E-1 Test or Replace the Hydraulic Oil 
E-2 Perform Engine Maintenance 
E-3 Perform Engine Maintenance 
E-4 Perform Engine Maintenance 
E-5 Perform Engine Maintenance 
Section 4. REPAIR PROCEDURES
Introduction 
Boom Components
1-1 Boom 
1-2 Boom Lift Cylinder 
1-3 Boom Extend Cylinder
1-4 Fork Level Slave Cylinder 
1-5 Fork Tilt Cylinder 
1-6 Boom Angle Proximity switch 
Operators compartment
2-1 Operators Compartment 
2-2 Machine Controls 
Fuel and Hydraulic Tanks
3-1 Fuel tank
3-2 Hydraulic tank
Engines
4-1 Engine 
4-2 Engine Fault Codes 
Transmission
5-1 Gear Box 
5-2 Axle 
5-3 Rear Axle Lockout Cylinder 
Hydraulic pumps
6-1 Boom and Steering Function Pump 
6-2 Auxiliary Gear Pump 
6-3 Hydrostatic Transmission Pump 
Manifold
7-1 Function Manifold 
7-2 Valve coils 
Stabilizers
8-1 Stabilizers 
Forks
9-1 Forks 
Power Plant Heaters
10-1 Power Plant Heaters 
Webasto Heater
11-1 Webasto Heater 
AC Unit
12-1 AC Unit 
Radiators
13-1 Radiators 
Fuel System
14-1 Fuel System Prime 
Braking Circuit
15-1 Braking circuit 
Section 5. LONG TERM STORAGE RECOMMENDATION
Introduction 
Section 6. FAULT CODES
Introduction 
Diagnostic Display 
Engine Fault Codes - Perkins 1104D-E44TA Engine 
Section 7. SCHEMATICS
Introduction 
Electrical and Hydraulic Symbol Legends 
Electrical Schematic 
Hydraulic Schematic
             
            
            
                Part No. 57.4400.9219
Rev C, September 2017
Serial Number Range
From GTH12AFM-101
Content:
INTRODUCTION
Important Information 
Revision History
Serial Number Legend
Section 1. SAFETY RULES
General Safety Rules 
Section 2. SPECIFICATIONS
Machine Specifications 
Performance Specifications 
Hydraulic Specifications 
Hydraulic Components Specifications 
Function Manifold Specifications 
Air Conditioner Refrigerant Specifications 
Perkins 1104D-E44TA Engine 
Dana Integral Gear Box 
Dana Axle 
Hydraulic Hose and Fitting Torque Specifications 
Torque Procedure 
SAE and Metric Fasteners Torque Charts 
Section 3. SCHEDULED MAINTENANCE PROCEDURES
Introduction 
Pre-delivery Preparation Report 
Maintenance Inspection Report 
Lubrication Chart 
Checklist A Procedures
A-1 Inspect the Manuals and Decals 
A-2 Perform Pre-operation Inspection 
A-3 Perform Function Tests 
A-4 Lubricate the Boom 
A-5 Perform Engine Maintenance 
A-6 Safety Devices 
A-7 Inspect the Pre Filter 
A-8 Perform Axle Maintenance 
A-9 Perform 30 Day Service 
A-10 Perform Axle Maintenance 
A-11 Perform Gear Box Maintenance 
A-12 Perform Axle Maintenance 
A-13 Perform Engine Maintenance 
A-14 Perform Engine Maintenance 
Checklist B Procedures
B-1 Inspect the Electrical Wiring 
B-2 Gear Box Oil Level 
B-3 Check the Exhaust System 
B-4 Perform Axle Maintenance 
B-5 Inspect the Tires, Wheels and Lug Nut Torque 
B-6 Perform Hydraulic Oil Analysis 
B-7 Check the Boom Wear Pads 
B-8 Perform Engine Maintenance 
Checklist C Procedures
C-1 Perform Engine Maintenance 
C-2 Perform Engine Maintenance 
C-3 Perform Engine Maintenance 
C-4 Perform Axle Maintenance 
C-5 Inspect and Lubricate the Sequencing Chains 
Checklist D Procedures
D-1 Inspect the Forks 
D-2 Tighten the Boom Chains 
D-3 Replace the Hydraulic Tank Return Filter Element 
D-4 Change Gear Box Oil 
D-5 Perform Engine Maintenance 
D-6 Perform Axle Maintenance 
D-7 Replace Coolant Filter Element
Checklist E Procedures
E-1 Test or Replace the Hydraulic Oil 
E-2 Perform Engine Maintenance 
E-3 Perform Engine Maintenance 
E-4 Perform Engine Maintenance 
E-5 Perform Engine Maintenance 
Section 4. REPAIR PROCEDURES
Introduction 
Boom Components
1-1 Boom 
1-2 Boom Lift Cylinder 
1-3 Boom Extend Cylinder
1-4 Fork Level Slave Cylinder 
1-5 Fork Tilt Cylinder 
1-6 Boom Angle Proximity switch 
Operators compartment
2-1 Operators Compartment 
2-2 Machine Controls 
Fuel and Hydraulic Tanks
3-1 Fuel tank
3-2 Hydraulic tank
Engines
4-1 Engine 
4-2 Engine Fault Codes 
Transmission
5-1 Gear Box 
5-2 Axle 
5-3 Rear Axle Lockout Cylinder 
Hydraulic pumps
6-1 Boom and Steering Function Pump 
6-2 Auxiliary Gear Pump 
6-3 Hydrostatic Transmission Pump 
Manifold
7-1 Function Manifold 
7-2 Valve coils 
Stabilizers
8-1 Stabilizers 
Forks
9-1 Forks 
Power Plant Heaters
10-1 Power Plant Heaters 
Webasto Heater
11-1 Webasto Heater 
AC Unit
12-1 AC Unit 
Radiators
13-1 Radiators 
Fuel System
14-1 Fuel System Prime 
Braking Circuit
15-1 Braking circuit 
Section 5. LONG TERM STORAGE RECOMMENDATION
Introduction 
Section 6. FAULT CODES
Introduction 
Diagnostic Display 
Engine Fault Codes - Perkins 1104D-E44TA Engine 
Section 7. SCHEMATICS
Introduction 
Electrical and Hydraulic Symbol Legends 
Electrical Schematic 
Hydraulic Schematic