Skyjack SJ45T, Operating Manual

Page: 40 / 106

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 aerial platform.
F
AMILIARIZA
TION
2.5-1 To Release Brakes Manually
Brakes must be manually disengaged for winching or
towing.
WARNING
Do not manually disengage brakes if
aerial platform is on a slope.
1. Ensure aerial platform is on level ground. Chock or
block wheels to keep aerial platform 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)
two revolutions counterclockwise.
1
Figure 2-8. 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 2-9a. Brake Manifold - SJ40/45T
3
1
2
Figure 2-9b. Brake Manifold - SJ61/66T
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.
Page 40
SJ 40T & SJ 45T
SJ 61T & SJ 66T
Procedures Section 2 - Familiarization