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Pro 100/150/200

Service Manual

Models 988001-007, 059, 060, 062, 063, 069-072, 074, 075,
077-082, 085, 087, 088, 309
08484000 06/00
Printed in USA

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Summarization of Contents

Section 1 - Introduction
1.1 THE MANUAL
Manual purpose and usage guidance.
1.2 SERVICE AND REPLACEMENT PARTS
Ordering parts and service inquiries.
1.3 PRODUCT REGISTRATION
Warranty activation process.
1.4 UNAUTHORIZED REPLACEMENT PARTS
Warning against using non-Gravely parts.
1.5 DISCLAIMER
Company's right to change products.
1.6 TECHNICAL SERVICE COMMUNICATIONS
Types of communications from Gravely.
Section 2 - Safety
2.1 SAFETY ALERTS
Explanation of safety alert symbols.
2.2 SIGNAL WORDS
Meaning of DANGER, WARNING, CAUTION.
2.3 NOTATIONS
Explanation of NOTE and IMPORTANT notations.
2.4 PRACTICES AND LAWS
Safe working practices and local laws.
2.5 REQUIRED OPERATOR TRAINING
Importance of operator training.
2.6 PREPARATION
Preparing for service and repairs.
2.7 CLEANING AND STORAGE
Proper cleaning and storage procedures.
2.8 SAFETY RULES
General safety rules for operation and work area.
2.9 CLEAN UNIT
Procedures for cleaning the unit.
Section 4 - General Maintenance & Adjustments
4.1 CONTROLS AND FEATURES
Identification of controls and features.
4.2 FILLING THE FUEL TANK
Safe procedures for refueling the unit.
4.3 GENERAL LUBRICATION
Lubrication points and schedule.
4.4 CHECKING FASTENERS
Daily checks for loose fasteners.
4.5 CHECK TIRES
Tire inflation and maintenance.
4.6 THE STEERING LEVERS
Operation and function of steering levers.
4.7 THE STEERING LEVER LATCHES
Function of steering lever latches.
4.8 ADJUSTING THE LEVERS
Procedures for adjusting steering and brake levers.
4.9 ADJUSTING THE SHIFT LEVER
Adjusting the transmission shift lever.
4.10 ADJUSTING THE PTO CLUTCH
Adjusting the PTO clutch.
4.11 ADJUSTING THE ROLLER CHAIN
Adjusting the roller chain.
Section 5 - Engine
5.1 ENGINE TROUBLESHOOTING
Chart for diagnosing and correcting engine problems.
5.2 CHECKING ENGINE OIL
Procedure for checking engine oil level.
5.3 CHANGING OIL FILTER
Procedure for changing the oil filter.
5.4 AIR CLEANER
Information on the air cleaner system.
5.5 CHECK SPARK PLUG
Procedure for checking spark plugs.
5.6 ENGINE REMOVAL
Steps for removing the engine.
5.7 ENGINE INSTALLATION
Steps for installing the engine.
Section 6 - Steering and Controls
6.1 STEERING CONTROLS
Checking steering controls for wear.
6.2 OPERATOR PRESENCE CONTROL
Function of the operator presence control system.
Section 7 - Drive Train
7.1 TROUBLESHOOTING
Diagnosing drive train movement issues.
7.2 TRANSMISSION
Checking transmission functionality.
7.3 TRANSMISSION REMOVAL
Steps for removing the transmission.
7.4 REPLACING THE TRANSMISSION BELT
Procedures for replacing the transmission belt.
7.5 TRACTION CLUTCH
Inspection and maintenance of the traction clutch.
7.6 REPLACING THE TRACTION BELTS
Procedures for replacing traction belts.
7.7 REPLACING THE PTO CLUTCH BELT
Procedures for replacing PTO clutch belts.
7.8 ELECTRIC CLUTCH
Procedures for removing the electric clutch.
7.9 WHEEL REMOVAL
Procedures for removing unit wheels.
Section 8 - Fuel System
8.1 FUEL SYSTEM TROUBLESHOOTING
Chart for diagnosing fuel system issues.
8.2 FUEL PUMP
Explanation of impulse style fuel pumps.
8.3 FUEL SYSTEM CONTAMINATION
Procedures for handling fuel contamination.
8.4 FUEL TANK
Information about the fuel tank material.
Section 9 - Electrical
9.1 TOOLS
Specialized tools for electrical repair.
9.2 ELECTRICAL MEASUREMENTS
Principles of voltage, current, and resistance measurement.
9.3 BATTERY
Battery charging and maintenance.
9.4 SWITCHES
Types of switches and testing methods.
9.5 SOLENOID AND RELAYS
Principles and testing of solenoids and relays.
9.6 LIGHTING CIRCUITS
Troubleshooting lighting circuits.
9.7 FUSES
Function and testing of fuses.
9.8 DIODES AND RECTIFIERS
Function and testing of diodes and rectifiers.
9.9 ELECTRIC CLUTCH
Function of the electric clutch.
9.10 CHECKING THE PTO CLUTCH
Procedures for checking PTO clutch.
9.11 INTERLOCK SWITCH
Testing interlock switches.
9.12 FUSE HOLDER
Testing fuse holders.
9.13 PRO 200 CHECK-OUT
Electrical check-out for specific engines.
9.14 CONTINUITY DIAGRAMS
Diagrams for various switch types.
9.15 WIRING DIAGRAM
Wiring diagrams for specific models.
9.16 ELECTRICAL SYSTEM
Components of the electrical system.

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