Gravely 988100 Owner's/Operator's Manual page 21

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 cut-
ting height adjustments.
44"AND 48" BELT REPLACEMENT
Mower Drive Belt
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 cutting
height adjustments.
Deck Belt
NOTE: Mower drive belt must be removed before removing
the deck belt.
6
5
4
7
8
1. Mower Drive Belt
Idler Spring
2. Mower Drive Belt
Idler
3. Mower Drive Belt
4. Deck Belt
Figure 17
3
2
5
1
5
OG1395
5. Deck Sheave
6. Mower Clutch
Sheave
7. Deck Belt Idler Spring
8. Deck Belt Idler
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.
MOWER BLADES
NOTE: If mower is used under sandy soil conditions, replace
blades when air lifts become eroded through at ends
(Figure 18).
DO NOT sharpen to this pattern
Sharpen to this pattern
DISCARD if more
than 1/2 in. (1.27 cm)
Remove Mower Blades
CAUTION: Use sturdy gloves or padding to
protect hands when working with mower
blades.
1. Turn the engine off. Remove the ignition key. Remove
the ignition wire from the spark plugs.
2. Remove the bolts, lock washer, flat washers, and
blades from the spindle shafts.
GB - 21
2
1. Cutting Edge
2. Air Lift Erosion
Figure 18
1
OT0792