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3 -7

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 6.5" x 8", 4 ply

18" x 6.5" x 8", 4 ply

18" x 6.5" x 8", 4 ply

18" x 6.5" x 8", 4 ply

     -Turf-Saver

18" x 8.5" x 8", 4 ply

18" x 8.5" x 8", 4 ply

18" x 8.5" x 8", 4 ply

18" x 8.5" x 8", 4 ply

     -Semi-Pneumatic

16" x 5" x 3", 4 ply

16" x 5" x 3", 4 ply

16" x 5" x 3", 4 ply

16" x 5" x 3", 4 ply

Tire Pressure

18 psi

18 psi

18 psi

18 psi

Battery

12 volt, BCI group

12 volt, BCI group

None

12 volt, BCI group

Engine

Kohler

Briggs & Stratton

Kohler

Kohler

     -Type

M12S (PS471529)

303447

PS-301058

PS-30159

     -Horsepower

12HP at 3600 RPM

16 HP at 3600 RPM

8 HP at 3600 RPM

8 HP at 3600 RPM

     -Number of Cylinders

One

Two

One

One

     -Displacement

29 cu. in. (477 cc)

29.3 cu. in. (480 cc)

18 cu. in. (305.4 cc)

18 cu. in. (305.4 cc)

     -Fuel

Gasoline, 87 minimum 

octane

Gasoline, 87 minimum 

octane

See Engine Manual

See Engine Manual

     -Fuel Capacity

2.0 gals. (7.5 L)

1.5 gals. (5.7 L)

1.25 gals. (4.7 L)

1.25 gals. (4.7 L)

     -Cooling

Air

Air

Air

Air

     -Air Filter

Dual Element with 

PreCleaner

Dual Element with 

PreCleaner

Dual Element with 

PreCleaner

Dual Element with 

PreCleaner

     -Lubrication   

Splash System

Full pressure pump with 

oil filter

Splash System

Splash System

     -Oil Type

See Engine Manual

See Engine Manual

See Engine Manual

See Engine Manual

     -Oil Capacity

2.5 pts. (1.2 L)

3.0 pts. (1.4 L)

2.5 pts. (1.2 L)

2.5 pts. (1.2 L)

     -Oil Filter

Spin on oil filter

Spin on oil filter

Spin on oil filter

Spin on oil filter

     -Charging System

12 volt, 15 amp

12 volt, 16 amp

Recoil

12 volt,  15 amp

Transmission

     -Type

All gear planetary transmission with fully enclosed PTO and immersion clutch

     -Oil Type

SAE 30W API service class SF or higher

     -Oil Capacity

5 qts (4.7 L)

5 qts (4.7 L)

5 qts (4.7 L)

5 qts (4.7 L)

     -Cooling

Air

Air

Air

Air

     -Number of Speeds

2 forward/2 reverse

4 forward/4 reverse

4 forward/4 reverse

4 forward/4 reverse

Speeds

     -Forward 

1st - 1.4 mph (2.3 kph) 

2nd - 1.8 mph (2.9 kph) 

3rd - 2.7 mph (4.4 kph) 
4th - 3.7 mph (6.0 kph)

1st - 1.4 mph (2.3 kph) 

2nd - 1.8 mph (2.9 kph) 

3rd - 2.7 mph (4.4 kph) 
4th - 3.7 mph (6.0 kph)

1st - 1.4 mph (2.3 kph) 

2nd - 1.8 mph (2.9 kph) 

3rd - 2.7 mph (4.4 kph) 
4th - 3.7 mph (6.0 kph)

1st - 1.4 mph (2.3 kph) 

2nd - 1.8 mph (2.9 kph) 

3rd - 2.7 mph (4.4 kph) 
4th - 3.7 mph (6.0 kph)

     -Reverse 

1st - 1.3 mph (2.1 kph) 

2nd - 1.7 mph (2.7 kph) 

3rd - 2.6 mph (4.2 kph) 
4th - 3.3 mph (5.3 kph)

1st - 1.3 mph (2.1 kph) 

2nd - 1.7 mph (2.7 kph) 

3rd - 2.6 mph (4.2 kph) 
4th - 3.3 mph (5.3 kph)

1st - 1.3 mph (2.1 kph) 

2nd - 1.7 mph (2.7 kph) 

3rd - 2.6 mph (4.2 kph) 
4th - 3.3 mph (5.3 kph)

1st - 1.3 mph (2.1 kph) 

2nd - 1.7 mph (2.7 kph) 

3rd - 2.6 mph (4.2 kph) 
4th - 3.3 mph (5.3 kph)

PTO

     -Type

Internal Slip Clutch

Internal Slip Clutch

Internal Slip Clutch

Internal Slip Clutch

     -Drive

All gear shaft driven off 

high/low planetary

All gear shaft driven off 

high/low planetary

All gear shaft driven off 

high/low planetary

All gear shaft driven off 

high/low planetary

     Output Speeds

High - 1179 RPM, low - 888 RPM at 3300 engine RPM

Construction

Cast-iron transmission case with 7-gauge framing

Содержание 985103

Страница 1: ...Service Manual Models 985103 104 105 107 115 117 Professional 2 WheelTractor 08483800 08 00 Printed in USA...

Страница 2: ...Installation 5 17 5 6 Engine Maintenance 5 17 5 7 Engine Storage 5 17 Section 6 Steering Controls 6 18 6 1 Handlebar Assembly 6 18 6 2 Steering Brakes Optional 6 19 6 3 Adjusting Brakes 6 19 6 4 Power...

Страница 3: ...rm Record those numbers below and transfer the label from the product registration to place indicated below Use these numbers whenever parts or service is required 1 4 UNAUTHORIZED REPLACEMENT PARTS U...

Страница 4: ...equipment in good condition Maintain it as directed in this manual Check all hardware at regular intervals Use only Gravely accessories attachment and replacement parts Do not overspeed the engine Do...

Страница 5: ...ever in the neutral N position Check the operation of the operator presence controls before operating the tractor With either the PTO or the direction control lever engaged the engine should run only...

Страница 6: ...s 4 7 L Cooling Air Air Air Air Air Filter Dual Element with PreCleaner Dual Element with PreCleaner Dual Element with PreCleaner Dual Element with PreCleaner Lubrication Splash System Splash System S...

Страница 7: ...tem Oil Type See Engine Manual See Engine Manual See Engine Manual See Engine Manual Oil Capacity 2 5 pts 1 2 L 3 0 pts 1 4 L 2 5 pts 1 2 L 2 5 pts 1 2 L Oil Filter Spin on oil filter Spin on oil filt...

Страница 8: ...s 1 0 L Oil Filter Spin on oil filter Spin on oil filter Spin on oil filter Spin on oil filter Charging System 12 volt 15 amp 12 volt 15 amp 12 volt 16 amp 13 volt 11 5 amp Transmission Type All gear...

Страница 9: ...g Air Air Filter Dual element Lubrication Splash Type Oil Type See Engine Manual Oil Capacity 5 qts 4 7 L Oil Filter Spin on filter Charging System 12 volt 12 5 amp Transmission Type Gear transmission...

Страница 10: ...rol Lever 2 Steering Brake Handlebar Optional 3 Gear Shift Lever Hi Low Gear 4 Operator Presence Control 5 Choke Control Knob Models with Briggs Stratton Engines 6 PTO Control 7 Ignition Switch 8 Kick...

Страница 11: ...stick indicates that the oil level is correct See specification Install the filler plug and dipstick 4 4 FORWARD REVERSE CLUTCH ADJUSTMENT After 25 hours of operation check the adjustment of the forwa...

Страница 12: ...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 Move t...

Страница 13: ...is across from it on the plate Continue tightening the bolts in this sequence until all the bolts are tightened Make sure the trunnion block is on the shipper shaft and held in place by the dog The do...

Страница 14: ...bolt next to one which was just tightened The bolts should be tightened in a cross sequence that is by tightening one bolt then tightening the bolt which is across from it on the plate Continue tight...

Страница 15: ...2 Incorrect grade of fuel 43 Faulty suction pipe 2 Bad electrical connection 23 Sticking throttle restricted movement 44 Choked oil filter 3 Faulty starter motor 24 Exhaust pipe restriction 45 Bad sol...

Страница 16: ...e oil filter 11 Clean the oil filter port and install a new oil filter according to the instructions on the oil filter Fill with new oil to the full mark on the dipstick 12 Start and run the engine fo...

Страница 17: ...ily Check the cooling system every 25 hours Clean all of the grass and other material from the cooling fins and intake screen of the engine If necessary remove the engine shrouds to clean the engine S...

Страница 18: ...as six marks on the head See Figure 11 4 Reassemble the Swiftamatic control lever linkage and connect the wiring harness 5 Mount the Hi Lo gear control handle assembly and hand lever pivot to the left...

Страница 19: ...he tractor and adjust until one has the desired tension for the right brake Tighten the jam nuts 6 3 ADJUSTING BRAKES After each use wash dirt from the brakes with water Each day before operating chec...

Страница 20: ...rt the rod into the slot of the brake handlebar weldment Place the carriage bolt through the brake handle and put two nylon washers on the bolt between the handle and the handlebar weldment Push the b...

Страница 21: ...Plate 656 x 1 312 x 095 Flat Washer E Ring 9 Connect the brake link rod to the pivot plate and the cam lever arm Retain with a 406 x 812 x 065 flat washer and a 09 x 75 cotter pin at each end 10 Slide...

Страница 22: ...cks function as described in the owner s manual NOTE Slight adjustment of the PTO rod length may be necessary to achieve proper operation 6 5 RANGE SHIFT CONTROL TWO SPEED AXLE Figure 15 1 Tie Rod 2 B...

Страница 23: ...tion valves 23 Inspect implement relief valve 44 Gears improperly installed 3 Inspect charge check valves 24 Inspect charge pump 45 Forks rod assembly incorrectly installed 4 Incorrect grade of lubric...

Страница 24: ...are scored or out of round replace gears and pins 3 Check internal gear teeth for wear 4 If friction surface of clutch cup is worn or damaged replace cup 5 Check the friction surfaces of the reverse c...

Страница 25: ...by hand The other wheel should turn in the opposite direction Check for tightness and rough spots while turning 7 7 DIFFERENTIAL REMOVAL 1 Drain oil from transmission 2 Raise tractor and remove wheels...

Страница 26: ...ain pinion bearing spacer and snap ring On the other two arms assemble in this sequence spider gear race bearing spacer and snap ring 17 Tilt the differential mechanism and install it in the worm gear...

Страница 27: ...ts to 20 ft lbs 27 Nm 21 For the 4 Speed Swiftamatic insert wire through one bolt head cross and insert through other then twist ends together securely Trim twist to 1 2 inch length Repeat securing ot...

Страница 28: ...s plate on the front of advance casting At this point the dog gear and shifting eccentrics are exposed Figure 30 Proceed as follows 1 Check the dog block for wear 2 Examine shifter shaft for wear 3 Fo...

Страница 29: ...eplace Idles Fast Lean 2 3 7 repair or replace Will Not Accelerate 1 6 11 12 14 15 16 repair or replace Over Rich Acceleration 1 15 repair or replace Hesitates 2 6 11 12 16 repair or replace Will Not...

Страница 30: ...nects the fuel pump diaphragm chamber and transmits the impulses to the pump diaphragm The impulses actuate the diaphragm and the flap valves to lift the fuel from the fuel tank to the carburetor 8 3...

Страница 31: ...art would cost and the results may not be as good 9 2 ELECTRICAL MEASUREMENTS In many electrical circuits there is some visible effect which indicates that the circuit is functioning properly A switch...

Страница 32: ...unit first Keep batteries out of reach of children ALWAYS follow information provided on battery by battery manufacturer Lead acid batteries generate explosive gases Severe chemical burns can result f...

Страница 33: ...ing is a common cause of battery failure Electrolyte Level Every 25 hours of operation check electrolyte level of each cell by removing caps one at a time The electrolyte level should be at level indi...

Страница 34: ...Jump starting battery charging or replacement is required when the starter motor will not crank the engine The unit used for jump starting should have a 12 volt battery with at least 500 cold crankin...

Страница 35: ...inal to ground switch case Meter should show open circuit infinite resistance Variation from test results described indicates a defective switch Ignition Switch NOTE Refer to the wiring diagram of the...

Страница 36: ...opening or disconnecting the wiring Once a fuse blows or melts it must be discarded and replaced with a new fuse of the same value Since the function of the fuse is to protect the circuit NEVER attemp...

Страница 37: ...4 5 6 7 8 9 10 1 Steering Brake Harness 2 Handlebar Wiring Harness 3 Switch 4 Solenoid 5 Wiring Harness 6 Relay 7 Hourmeter 8 Ignition Switch 9 Fuse 10 Interlock Open Switch Robin Engine Briggs Strat...

Страница 38: ...00 87 87A 86 85 30 NOT ENERGIZED 87 87A 86 85 30 ENERGIZED PTO Switch 08571800 ENAGED button out 1 2 1 2 FWD REV Switch 08571900 1 2 1 2 NEUTRAL button out FORWARD OR REVERSE button in Solenoid 034923...

Страница 39: ...9 39 9 11 12 HP ELECTRIC START KOHLER...

Страница 40: ...9 40 9 12 8 HP MANUAL START KOHLER...

Страница 41: ...9 41 9 13 8 HP ELECTRIC START KOHLER...

Страница 42: ...9 42 9 14 16 HP ELECTRIC START BRIGGS...

Страница 43: ...9 43 9 15 ROBIN ENGINES...

Страница 44: ...Gravely A division of Ariens Company 655 West Ryan Street P O Box 157 Brillion WI 54110 0157 920 756 2141 Fax 920 756 2407 www gravely com...

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