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MAINTENANCE SCHEDULE
Service Performed
Check Engine Oil *
Change Engine Oil *
Clean Engine of any
Grass and Debris
Check Air Filter *
Change Air Filter *
Clean Engine *
Cooling System
Check Safety
Interlock System
Check Hydraulic
System
Check Tire Pressure
Check Mower
Blades
Lubricate Unit
Check Parking
Brake
Clean Battery
Check Fasteners
Check Belts
Change Hydraulic
Oil and Filter **
Lubricate Caster
Fork Bearings
Lubricate Caster
Wheel Bearings
Adjust Clutch‡
* Refer to engine manual for instructions.
** Change after first 75 hours of operation.
‡ Adjust clutch every 500 hours or once per
season if used less than 500 hours.
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SERVICE PARTS
See your Gravely dealer to purchase service
parts for your unit.
Description
Air Filter (Outer) (Models
991128, 991129, 991130)
Air Filter (Inner) (Models
991128, 991129, 991130)
Air Filter (Models 991132,
991133, 991135, 991136)
Air Filter (Model 991140)
Engine Oil Filter (Models
991128, 991129, 991130)
Engine Oil Filter (Models
991132, 991133)
Engine Oil Filter (Models
991135, 991136)
Engine Oil Filter (Model
991140)
Spark Plug (Models
991128, 991129, 991130)
Spark Plug (Models
991132, 991133, 991135,
991136
Spark Plug (Model 991140)
Fuel Filter (Models 991128,
991129, 991130)
Fuel Filter (Models 991132,
991133, 991135, 991136)
Fuel Filter (Model 991140)
Muffler Gasket
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PTO Belt (Engine to Deck)
– 48"
Mower Drive Belt – 48"
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Mower Blade – 48"
•
Mulching Blade – 48"
PTO Belt (Engine to Deck)
– 52"
Mower Drive Belt – 52"
Mower Blade – 52"
Mulching Blade – 52"
PTO Belt (Engine to Deck)
– 60"
Mower Drive Belt – 60"
Mower Blade – 60"
Mulching Blade – 60"
23 x 10.5-12 Tire
EN - 24
Qty. Part No.
1
21548800
1
21548700
1
21500010
1
21563300
1
21535800
1
21397200
1
20715100
1
21563100
2
21536100
2
21500009
1
21547400
1
21548101
1
21545700
1
21563200
1
21563400
1
07200809
1
07200035
3
00450200
3
00273000
1
07200706
1
07200036
3
00450300
3
04887600
1
07200712
1
07200038
3
09081200
3
04887700
1
07101043
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