JLG G5-18A Service Manual - Manual (Page 73)

5-13 G5-18A, 2505H, 25.5
Axles, Drive Shafts, Wheels and Tires
5.9.2 Towing Procedure
1. Securely block all four wheels.
2. Loosen shuttle valve (1) on hydrostatic transmission
until it hits against stop (2).
Note: This procedure does not alter any relief settings.
3. Connect an auxiliary hydraulic power supply to
P1 port (3) on front axle and apply 220-435 psi
(15-30 bar) to release the park brake.
Note: DO NOT apply more than 450 psi (31 bar) to
release the park brake. Excessive pressure could
damage the axle brake system.
4. Loosen unlocking bolts (4) located at front and back
side of axle housing and remove stop washers.
5. Tighten unlocking bolts against axle housing.
6. Release pressure from auxiliary hydraulic power
supply and remove auxiliary hydraulic power supply
7. Carefully remove blocking from each tire and tow
machine to a secure location.
8. After machine has been towed to a secure location,
block all four wheels.
9. Tighten relief valve (1) on hydrostatic transmission to
32-41 lb-ft (44-56 Nm).
10. Connect an auxiliary hydraulic power supply to the
P1 port (2) on the front axle and apply 220-435 psi
(15-30 bar) to release the park brake.
Note: DO NOT apply more than 450 psi (31 bar) to
release the park brake. Excessive pressure could
damage the axle brake system.
11. Loosen unlocking bolts (4) and install stop washers.
12. Tighten unlocking bolts 70-85 lb-ft (95-115 Nm).
13. Release pressure from auxiliary hydraulic power
supply and remove auxiliary hydraulic power supply.
14. The parking brake should now be reactivated and
front wheels locked.
15. Remove blocks from four tires.
16. Verify that parking brake works.
17. If parking brake does not work, check all activation
operations step by step.
MY8910
2
1
MY2050
4 3
4 (Not Shown)