Terex PT-100G Forestry - Hydraulic Auxiliary Circuit

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Hydraulic Auxiliary Circuit

Figure 3-2 PT-100G Hydraulic Auxiliary Circuit

3-2

Compact Track Loader

3. Circuit Diagrams

TO HIGH FLOW AUX. Q/C

AUXILIARY PUMP

LIFT ARM VALVE

AUXILIARY PUMP INLET

TO LOW FLOW AUX. Q/C

FROM ATTACHMENT

CASE DRAIN Q/C

LOAD SENSE

Main Page

Default Chapter3
- Table of Contents3
1 Product Safety7
- Chapter Overview7
- Basic Precautions7
- Repair9
- Attachments10
- Machine Labels and Decals10
  - Product Identification Number10
2 Technical Specifications13
- Specifications13
3 Circuit Diagrams15
- Chapter Overview15
- Hydraulic Charge Circuit15
- Hydraulic Auxiliary Circuit16
- Hydraulic Control Circuit17
- Hydraulic Drive Circuit18
- Lift Arm Control Valve19
- Hydraulic Solenoid Blocks20
- Electrical Attachment Outlet21
4 Maintenance23
- Chapter Overview23
- Personal Safety23
- Lift-Arm Brace23
- Tilt-Up Cab24
- Jacking Procedure24
- Grease Fittings25
- Undercarriages25
- Track Tension26
- Planetary Oil Change26
- Drive Sprocket Rollers27
- Track Removal28
- Track Installation30
- Air Cleaner32
- Fuel Filter33
- Water Separator33
- Belt Removal/Installation33
- Engine Oil/Filter Change34
- Engine Oil Specifications35
- Oil Level Check35
- Hydraulic Fluid/Filter Change36
  - Radiator/Oil Cooler Cleaning37
- Engine Cleaning37
- Case Drain Filter38
- Fuse Panel38
5 Machine Controls and Instrumentation41
- Chapter Overview41
- Machine Controls41
- Lift Arm Control41
- Drive Control41
- Throttle41
  - Switches42
6 Operator Enclosure43
- Chapter Overview43
- Personal Safety43
- Machine Preparation43
- Removal & Installation43
  - Lap Bar Gas Spring43
  - Pillar Harness Panel45
7 Chassis and Fuel Tank47
- Chapter Overview47
- Personal Safety47
- Machine Preparation47
- Removal & Installation47
  - Fuel Sending Unit47
  - Fuel Tank48
8 Radiator and Oil Cooler53
- Chapter Overview53
- Personal Safety53
- Machine Preparation53
- Removal & Installation53
  - Fan Guard53
9 Hydraulic Reservoir57
- Chapter Overview57
- Personal Safety57
- Machine Preparation57
- Removal & Installation57
10 Lift-Arm/Drive Controls63
- Chapter Overview63
- Personal Safety63
- Machine Preparation63
- Removal & Installation63
  - Joystick63
    - Removal Procedure65
  - Lift Arm Control Valve65
    - Installation65
    - Removal65
11 Hydraulic Pumps/Motors67
- Chapter Overview67
- Personal Safety67
- Machine Preparation67
- Removal & Installation67
- Charge Pump67
- Auxiliary Pump68
- Tandem Drive Pump69
- Drive Motor71
  - 12. Engine73
- Chapter Overview73
- Personal Safety73
- Removal & Installation73
13 Undercarriage81
- Chapter Overview81
- Personal Safety81
- Machine Preparation81
- Removal & Installation81
- 15" Idler Wheel81
14 Lift-Arm Components93
- Chapter Overview93
- Personal Safety93
- Machine Preparation93
- Removal & Installation93
  - Lift Cylinder93
  - Bucket/Tilt Cylinder95
15 Quick Attach99
- Chapter Overview99
- Personal Safety99
- Machine Preparation99
- Removal & Installation99
  - Locking Pin99
    - Removal Procedure101
  - Pivot Pin101
16 Hydraulic Component Service103
- Chapter Overview103
- Personal Safety103
- Disassembly & Assembly103
- Chapter Overview111
- Personal Safety111
- Contamination Inspection111
18 Troubleshooting117
- Chapter Overview117
- Personal Safety117
- Visual Inspection117
- Engine/Machine Troubleshooting119
19 Service Tool127
- Chapter Overview127
- Personal Safety127
  - Connecting the Service Tool130
  - Using the Service Tool130
20 Lubricant & Fuel Specification137
- Chapter Overview137
- Fluids137
- Fuel Specifications137
21 Service Aids & Supplements139
- General Torque Specifications139
- Fitting Torque Specifications139

Terex PT-100G Forestry - Hydraulic Auxiliary Circuit

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