SJ46 AJ, SJ51 AJ, SJ63 AJ 213210AAAA
69
Release the brakes manually Section 6 – Additional Procedures
6.3 Release the brakes
manually
WARNING
Do not manually disengage the brakes if the
MEWP is on a slope. If you do not obey, there is a
risk of death or serious injury.
1. Make sure that the MEWP is on rm, level
ground. Use wheel chocks or blocks at the front
and rear side of the wheels to prevent MEWP
movement.
2. Turn the main power disconnect switch to the
off position.
CAUTION
Do not use the hydraulic power with the brakes
disengaged.
3. Find the drive-bypass valve
1
on the inboard
side of the drive pump. Loosen the valve
stem (identied with yellow paint) 90 degrees
clockwise to bypass the drive pump.
1
CAUTION
Do not release the brakes before you disengage
the drive motor.
4. Push the plunger
2
of the brake auto-reset
valve on the brake manifold.
3
2
Figure 07 SJ46 AJ/SJ51 AJ brake release system
3
2
Figure 08 SJ63 AJ brake release system
NOTE
If the MEWP does not have a pressure gauge,
refer to the service manual for the installation
procedure.
5. Continuously push and release the knob
3
of
the hand pump until rm resistance is felt or until
the pressure gauge (optional equipment) shows
300 - 430 psi. The brake is now released to
permit wheel rolling.
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