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Professional 2-Wheel Tractor
Service Manual
Models 985103,104, 105, 107 - 115, 117
08483800 08/00
Printed in USA
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TABLE OF CONTENTS Section 1 - Introduction. . . . . . . . . . . . . . . . . . . 1-3 Section 6 - Steering & Controls . . . . . . . . . . . 6-18 1.1 The Manual. . . . . . . . . . . . . . . . . . . . . . . . . 1-3 6.1 Handlebar Assembly. . . . . . . . . . . . . . . . . 6-18 1.2 Service And Replacement Parts. . . . . . . . . 1-3 6.2 Steering Brakes (Optional) . . . . . . . . . . . . 6-19 1.3 Product Registration . . . . . . . . . . . . . . . . . . 1-3 6.3 Adjusting Brakes. . . . . . . . . . . . . .
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SECTION 1 - INTRODUCTION 1.1 THE MANUAL 1.4 UNAUTHORIZED REPLACEMENT PARTS The purpose of this manual is to provide complete instructions for service, maintenance, disassembly, Use only Gravely replacement parts. The replacement repair, and installation of the mechanical components of any part on this vehicle with anything other than a for the unit. Gravely authorized replacement part may adversely affect the performance, durability, or safety of this unit Dealer trained service person
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in the disassembly order on a clean work surface. 1.7 PREPARATION Organization is a key part of proper reassembly. Before starting any removal of parts, proper Tools, instruments, and parts needed for the job should preparation is very important for efficient work. A clean be gathered before work is started. Interrupting a job to work area at the start of each job will allow you to locate tools or parts is a needless delay. perform service repairs easily and quickly. To reduce the incide
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Learn the location and function of all controls. only if at least one of the operator presence switches is depressed. Learn how to use the controls to stop the wheels and attachment quickly in an emergency. Do not use the equipment in the dark without adequate lighting. Understand and follow each danger, warning, caution and instruction decal installed on this product. Keep away from moving parts. Stay clear of the attachment whenever the engine is running. Never permit children to operate
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SECTION 3 - SPECIFICATIONS Model Number 985103 985104 985105 985107 Description 8HP Gear Drive 8HP Gear Drive 8HP Gear Drive 12 HP Gear Drive Brakes Optional, individual, 7" (17.8 cm) x 1.75" (4.4 cm) drum type Steering Manual, optional power steering kit available Turning Radius Zero (with steering kit) Minimum Uncut Circle Zero Zero Zero Zero Optional Tire Sizes -Stud Tread 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply -Trac Tread 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8",
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Model Number 985108 985109 985110 985111 Description 12HP Gear Drive 16HP Gear Drive 8HP Gear Drive 8HP Gear Drive Brakes Optional, individual, 7" (17.8 cm) x 1.75 (4.4 cm) drum type Steering Manual, optional power steering kit available Turning Radius Zero (with steering kit) Minimum Uncut Circle Zero Optional Tire Sizes -Stud Tread 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply -Trac Tread 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply 4" x 8", 4 ply -Turf-Chief 18" x
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Model Number 985112 985113 985114 985115 Description 12 HP 12 HP 16 HP 8.5 HP Gear Drive Gear Drive Gear Drive Gear Drive Brakes 7 x 1.75" Drum Type N/A Steering Manual, optional power steering kit available Turning Radius Zero (with steering kit) Minimum Uncut Circle Zero Optional Tire Sizes -Stud Tread 4.00-8 4.00-8 4.00-8 4.00-8 -Trac Tread 4.00-8 4.00-8 4.00-8 4.00-8 -Turf-Chief 18" x 6.50"-8" 18" x 6.50"-8" 18" x 6.50"-8" 18" x 6.50"-8" -Turf-Saver 18" x 8.50"-8" 18" x
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Model Number 985117 Description 13.5 HP Gear Drive Brakes 7 x 1.75" Drum Type Steering Manual, optional power steering kit available Turning Radius Zero (with steering kit) Minimum Uncut Circle Zero Optional Tire Sizes -Stud Tread 4.00"-8" -Trac Tread 4.00"-8" -Turf-Chief 18" x 6.50"-8" -Turf-Saver 18" x 8.50"-8" -Semi-Pneumatic 16" x 5" x 3" Tire Pressure See Tire Sidewall Battery 12V BCI Group Engine Robin -Type EH410-0226T -Horsepower 13.5 HP -Number o
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SECTION 4 - GENERAL MAINTENANCE & ADJUSTMENTS 4.1 CONTROLS AND FEATURES 1 2 4 7 10 3 15 9 12 4 13 6 5 11 14 8 4 OH0160 1. Direction Control Lever 8. Kick Stand 2. Steering Brake Handlebar (Optional) 9. Throttle Control 3. Gear Shift Lever (Hi/Low Gear) 10. Hour meter 4. Operator Presence Control 11. Brake Handle Cross Bar 5. Choke Control Knob (Models with Briggs & Stratton 12. Range Shift Handle (Two Speed Axle) Engines) 13. Parking Brake Handle (Optional on 8.5 HP) 6. PTO Control 14. Instruct
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4.3 GENERAL LUBRICATION Control Linkage Lubrication CAUTION: Before performing any service or Every 25 hours of operation put a drop of engine oil on adjustments: the pivots of the throttle lever, the direction control • Turn PTO switch "OFF". lever, the gear shift lever, the PTO control, and range • Park mower on a hard, flat, level surface. shift handle. • Place steering control levers in neutral NOTE: There are no grease fittings on the tractor. lock (fully outward) position. Transmissio
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4.6 STEERING BRAKE ADJUSTMENT (APPLICABLE MODELS) • Park the unit in a level area. Put the parking brake 2 1 4 5 1 7 7 7 handle in the "OFF" (down) position. Loosen the jam nuts on the right and left brake rod assemblies (Figures 2 & 3). Turn the adjusting nuts until the brake handle cross bar is parallel with the instrument panel (Figure 1). 8 3 • Move the brake handlebar all the way to the right 1 7 9 6 and measure the distance from the right end edge 10 of the brake handle cross bar
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7 1 1 2 1 1 2 9 2 3 5 6 8 2 4 1. Adjusting Nuts 4. Pivot Plate 7. Large Spring 2. Jam Nuts 5. Brake Rod Assembly 8. Hi-Lo Lever Assembly 3. Adjustment Bracket 6. Hi-Lo Control Rod 9. Control Extension Rod Figure 4 OH0191 NOTE: Do not tighten the bolts in a circular sequence, 4.7 PTO BRAKE ADJUSTMENT by tightening the bolt next to one which was just tight- • Adjust the PTO brake after every 100 hours of ened. The bolts should be tightened in a cross operation. sequence, by tightening one bolt
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• Remove the dog and trunnion block. Disconnect 4.8 SLIP CLUTCH ADJUSTMENT the wiring harness from the PTO brake interlock • Adjust the slip clutch after every 100 hours of switch and remove the shifter parts. Slide the operation. shipper shaft assembly through the top of the advance casting. Slide the clutch assembly and WARNING: Stop the engine before adjusting pinion shaft out of the transmission. Remove the the slip clutch. retaining ring and slide the clutch assembly off of the pi
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SECTION 5 - ENGINE 5.1 ENGINE TROUBLESHOOTING The following troubleshooting chart is to be used to The troubleshooting key is generic and can be used for isolate engine problems and give possible causes and several types of engines. Use only those possible corrective action responses. causes and corrective actions that apply to the unit. TROUBLE POSSIBLE CAUSES CORRECTIVE ACTION (Refer to Key Below) Black Exhaust 1, 20, 22, 25, 29, 31, 32, 33 repair or replace Blue/White Exhaust 4, 20, 25, 31
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13.Check for leakage at the drain plug and oil filter if 5.2 CHECKING ENGINE OIL used. Tighten the fittings as necessary if leakage Check the engine oil daily prior to use. occurs. IMPORTANT: Never operate the engine with the oil 14.Release the parking brake. below the low mark on the dipstick. 15.Return the unit into service. See the engine manual for oil specifications and oil filter service instructions. 5.4 AIR CLEANER To check oil level: Dry type air cleaner elements should be replac
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5.5 ENGINE REMOVAL AND INSTALLATION 1. Remove ground cable from battery. 2. Drain Transmission oil. 3. Turn off fuel at fuel tank. Remove fuel line from fuel pump. 4. Remove the choke cable from carburetor. 5. Remove the throttle cable from the linkage. 6. Separate wiring harness at connector 7. Remove cable from starter motor. 8. Remove rear hitch from tractor. 9. Remove 2 lower bolts securing engine to the chassis casting. 10.Remove the 2 upper bolts from the engine but leave in place the
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SECTION 6 - STEERING & CONTROLS engine and out between the left side of the frame 6.1 HANDLEBAR ASSEMBLY and the PTO control. Rotate the handlebar into the mounting position. CAUTION: Before performing any service or adjustments: 3. Retain the handlebar in position with four 3/8-16 x 1.25 Grade 8 bolts and lock nuts. The • Turn PTO switch "OFF". Grade 8 bolt has six marks on the head. See • Park mower on a hard, flat, level surface. Figure 11. • Place steering control levers in neutral l
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6.3 ADJUSTING BRAKES After each use wash dirt from the brakes with water. Each day before operating, check all nuts, bolts, and other fasteners. Replace missing or damaged pieces. Brake service is required if the brakes do not stop and hold the unit effectively. Adjust the brake linkage as follows: 1. Stop the unit on a level surface. 2. Stop the engine and block the wheels so the unit cannot roll. 3. Remove wheels and brake drums. 4. Inspect brakes and drum. 1. Hi-Lo Control Handle 2. Hand
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1 2 3 4 8 5 6 4 7 1. Right Hand Brake Rod 4. Shoe Return Box Spring 7. Shoe Return Spring 2. Left Hand Brake Rod 5. Back Plate 8. Cam Lever Arm 3. Brake 6. Brake Cam Figure 13 PH0220 Fasten the instruction plate and the brake handle 7. Slide the brake handle onto the rear of the right brackets to the rear hitch with the 1/2-13 x 2.00 bolts hand brake rod assembly and insert the rod into and 1/2" lock nuts. the slot of the brake handlebar weldment. Place the carriage bolt through the brake
