Page 46 December 2007
SJ 86T
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
contained in this operating manual and on the MEWP.
FAMILIARIZATION
2.5-1 To Release Brakes Manually
Brakes must be manually disengaged for winching or
towing.
WARNING
Do not manually disengage brakes if
MEWP is on a slope.
1. Ensure MEWP is on level ground. Chock or block
wheels to keep MEWP from rolling.
2. Turn main power disconnect switch to “ ” off
position.
CAUTION
Do not use hydraulic power with brake
disengaged.
3. Locate the bypass valve on the inboard side of the
drive pump. Bypass the drive pump by loosening
the valve stem (item 1 - marked with yellow paint)
90 degrees clockwise.
1
Figure 2-10. Drive Bypass Valve
CAUTION
Do not release brakes before disengaging
drive motor!
4. Push in black brake valve plunger (item 3).
1
3
2
Figure 2-11. Brake Manifold
5. Actuate red hand pump (item 1) slowly by moving
knob in and out until pressure gauge (item 2)
(if equipped) registers 300 psi/21 bar. DO NOT
exceed 350 psi/24 bar. Brake is now released. If
MEWP is not equipped with a pressure gauge,
refer to the Service manual for instructions on how
to install the pressure gauge.
WARNING
Brakes must be applied immediately
after reaching desired location. Refer to
Section 2.5 on how to reengage brakes.
Procedures Section 2 - Familiarization
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