ASV SR-70 Wartungshandbuch Seite 79
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Chapter Overview
This chapter provides procedures for the removal and
installation of the engine and associated components.
Personal Safety
Improper or incomplete maintenance/repair of a Rubber
Track Loader can be dangerous and may result in machine
damage, injury or death.
Do not attempt to perform any type of repair or maintenance
on a Rubber Track Loader until you have read and fully
understood the information in this manual. Refer to the
Operation and Maintenance manual for instructions regard-
ing proper machine operation techniques before operating
any Rubber Track Loader.
Prior to performing any type of service work on a Rubber
Track Loader, read and understand Chapter 1 (Product
Safety) for personal safety information.
Machine Preparation
Accidental machine starting can cause injury or death to per-
sonnel working on a Rubber Track Loader.
As a precaution, disconnect the battery cables from the bat-
tery terminals, tape the battery clamps and remove the key
from the ignition switch prior to per-forming any service work
on a Rubber Track Loader.
Place a “Do Not Operate” tag prominently on the machine to
inform personnel that the machine is be-ing worked on.
Removal and Installation
Removal and installation procedures are provided for
the following engine related components.
• Battery
• Exhaust
• Air Cleaner
• Engine
Note: Procedures are provided for only those engine associ-
ated components listed above. However, exploded parts dia-
grams exist in the PT-70/80 parts manuals to serve as visual
aids in the assembly and disassembly of other system com-
ponents.
Battery
Removal
1. Open the hood at the rear of the machine.
2. Disconnect the negative and positive battery
cables from the battery terminals. (fig. 12-1)
3. Remove the wingnuts securing the battery hold
down strap. (fig. 12-2)
12. Engine
12-1
12-1
12-2
- Service Manual 1
- Table of Contents 3
- Attachments 10
- Machine Labels and Decals 10
- Rubber Track Loader 11
- 1. Product Safety 11
- 2. Technical Specifications 13
- & Service Tools 13
- PT-80 Specifications 14
- Cycle Times 14
- Service Tools 14
- 3. Circuit Diagrams 15
- Hydraulic Auxiliary Circuit 16
- Hydraulic Drive Circuit 17
- Hydraulic Pilot Generation 19
- Electrical Attachment Outlet 20
- Drive Control 21
- (line routing) 21
- Lift Arm Control 22
- 4. Maintenance 23
- Tilt-Up Cab 24
- Jacking Procedure 24
- Grease Fittings 25
- Undercarriages 25
- Grease Fitting Locations 25
- Track Tension 26
- Drive Sprocket Rollers 27
- Track Removal/Installation 28
- Air Cleaner 32
- Fuel Filter 33
- Water Separator 33
- Accessory Belt Tension 34
- Engine Oil/Filter Change 36
- Engine Oil Specifications 37
- Oil Level Check 37
- Hydraulic Fluid/Filter Change 38
- Radiator/Oil Cooler 39
- Case Drain Filter 40
- Fuse Panel 40
- 5. Machine Controls and 43
- Instrumentation 43
- Switches 44
- 6. Operator Enclosure 45
- Pillar Switch Panels 46
- Side Panels/Gauges 47
- Rear Interior Panel 48
- 7. Chassis and Fuel Tank 49
- Fuel Tank 50
- Footwell 52
- Foot Throttle Assembly 53
- Hood Assembly 53
- 8. Radiator and Oil Cooler 55
- Fan & Fan Shroud 56
- 9. Hydraulic Reservoir 59
- Suction Screen 66
- 10. Lift-Arm/Drive Controls 67
- Lift Arm Float Magnet 69
- 11. Hydraulic Pumps/Motors 71
- Tandem (Drive) Pump 74
- Drive Motor 76
- 12. Engine 79
- Exhaust System 80
- 13. Undercarriage 87
- 10” & 15” Wheels (PT-70) 89
- Bogie Wheel (PT-80 only) 90
- Idler Hub 94
- Part #: 0403-337 95
- Part #: 0403-334 95
- Part #: 0403-333 95
- Part #: 0403-336 95
- Part #: 0403-338 96
- Part #: 0403-330 96
- Part #: 0403-335 97
- 14. Lift-Arm Components 99
- Installation 101
- Bucket/Tilt Cylinder 101
- Quick Coupler Block PRV 103
- 15. Quick Attach 105
- Pivot Pin (quick attach) 107
- Service Procedures 109
- 16. Hydraulic Component 109
- Assembly 111
- Lift Arm Control Valve 112
- Drive Motor (brake portion) 114
- Drive Motor (motor portion) 116
- (Drive Relief Valves) 117
- Disassembly & Adjustment 117
- Drive Pump 118
- Auxiliary Pump 122
- 17. Hydraulic Pressure/Flow 125
- Test & Troubleshooting 125
- Auxiliary Pressure Check 127
- Lift Arm Pressure Check 128
- Drive Pressure Check 128
- Posi-Power Pressure Check 129
- Auxiliary Flow Test 130
- Flow Troubleshooting 131
- 18. Troubleshooting 133
- 19. Lubricant & Fuel 137
- Specifications 137
- 20. Service Aids & 139
- Supplements 139
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