Gravely 988100 - GR1336FX Manual De Usuario

GB - 23

5. Make the final jumper cable connection to the 

engine block or the furthest ground point away 
from the discharged battery.

6. Start engine (See Starting and Shut Off on page 

12). If engine will not start after several tries, unit 
or battery may need service.

7. After engine starts, leave cables connected for 

one to two minutes.

8. Disconnect cables in reverse order.

9. Operate unit normally to charge battery.

1. Stop engine, remove key and wait for all hot parts 

to cool.

2. Set deck to the fourth cutting height.

3. Remove deck cover.

4. Remove deck idler spring.

5. Remove belt from deck pulleys and mower clutch 

sheave.

6. Install new belt.

7. Replace idler spring.

8. Replace deck cover and secure.

NOTE: Make sure the wing knobs do not interfere with 
cutting height adjustments.

1. Stop engine, remove key and wait for all hot parts 

to cool.

2. Set deck to the fourth cutting height.

3. Remove deck cover.

4. Remove mower drive belt idler spring (Figure 17).

5. Remove mower drive belt from deck sheaves and 

mower clutch sheave.

6. Install new mower drive belt on deck sheaves and 

mower clutch sheave.

7. Replace mower drive belt idler spring to tension 

belt.

8. Replace deck cover and secure.

NOTE: Make sure wing knobs do not interfere with cut-
ting height adjustments.

NOTE: Mower drive belt must be removed before 
removing the deck belt.

1. Stop engine, remove key and wait for all hot parts 

to cool.

2. Remove the deck belt idler spring from the spring 

anchor.

3. Remove deck belt from deck sheaves.

4. Install new deck belt.

5. Replace deck idler spring to tension belt.

6. Replace mower drive belt.

7. Replace deck cover.

WARNING: Make sure cables are clear of 
any moving engine parts before starting 
engine.

Figure 16

OG1390

1

2

3

4

1. Idler Spring
2. Deck Pulley

3. Mower Clutch 

Sheave

4. Belt

2

Figure 17

OG1395

1

1. Mower Drive Belt 

Idler Spring

2. Mower Drive Belt 

Idler

3. Mower Drive Belt
4. Deck Belt

5. Deck Sheave
6. Mower Clutch 

Sheave

7. Deck Belt Idler 

Spring

8. Deck Belt Idler

2

3

4

5

6

7

8

5

5