Gravely Hydro Pro Series - Page 18

GB-18
Parking Brake Adjustment
To check:
1. Pull back parking brake lever (Figure 12).
Brake arm must contact tire and brake lever must
press brake switch, and there must be an 1/8" (3 mm)
gap between the parking brake arm and the stop bolt
on the unit frame.
2. Push lever forward (Figure 13).
Brake arm must disengage.
To adjust:
1. Remove clevis from brake arm tab (Figure 14).
2. Turn clevis up or down the brake rod as needed.
3. Replace clevis on brake arm tab.
SPEED CONTROL NEUTRAL ADJUSTMENT
(988105, 108, 123, 126)
Check Neutral
1. Put speed control levers in neutral.
2. Lock steering control levers in neutral.
3. Engage parking brake.
4. Start engine.
5. Run engine at full throttle.
6. Disengage parking brake.
Check for creep.
7. Release steering control levers.
Check for creep.
If unit creeps when parking brake and steering levers
are released: Adjust steering rod clevis.
To adjust (Figure 15):
1. Stop engine.
2. Put speed control levers in neutral.
3. Remove pump actuating spring.
4. Disconnect steering control rod clevis from speed
control plate.
5. Turn clevis on steering control rod to adjust.
If unit creeps backward, turn clevis down the rod.
If unit creeps forward, turn clevis up the rod.
6. Replace steering control rod clevis, clevis pin, hairpin
and pump actuating spring.
7. Check adjustments and repeat steps 1-6 as needed.
8. Once neutral is set, loosen neutral stop bracket and
slide it against the washer above the steering control
rod clevis.
Figure 11
1. Reverse Stop Bolt
2. Neutral Adjustment Bracket
1
2
Parking Brake ArmTire
Figure 12
OG1470
Stop Bolt
1/8" (3 mm)
Parking Brake Arm
Tire
Figure 13
OG1470
Figure 14
1. Parking Brake Rod
2. Clevis
3. Parking Brake Arm
1
2
3