48
4‒2‒1 Boom Elevating
Hold the enable switch up to “ON” and operate
the boom elevation switch to raise or lower the
boom.
Raise
Lower
Boom elevation switch
Stop
Raise
Lower
M147C620
Fig. 8‒36
4‒2‒2 Boom Rotating
Hold the enable switch up to “ON” and operate
the boom rotation switch to rotate the boom.
Boom rotation switch
(Clockwise)
(Counter-
clockwise)
CCW
CW
Stop
CCW
CW
M098M520
Fig. 8‒37
4‒2‒3 Boom Telescoping
Hold the enable switch up to “ON” and operate
the boom telescope switch to extend or retract
the boom.
Retract
Extend
Stop
Retract
Extend
Boom telescoope switch
M147C720
Fig. 8‒38
5. Platform Leveling System
5‒1 Platform Level Adjustment
If the pre-operation check reveals that the
platform is tilted (front-back tilt of about 3
°
or
more), adjust it as follows.
WARNING
• Do not allow any person or object on the
platform when adjusting from the lower
controls.
• Do not tilt the platform excessively
when adjusting from the upper controls.
Occupants and load will dump out from
the platform.
NOTICE
Even if the platform tilt is under 3°
, adjust
it if the tilt makes work hard.
Put the machine on a firm, level surface,.
Move the boom to a position where it is easy to
adjust.
Hold the enable switch up to “ON” or depress
the foot switch. Operate the platform level
adjust switch to adjust the level of the platform.
Platform level adjust switch
M179E12-1
Fig. 8‒39
Enable switch
Platform level adjust switch
M179E22-1
Fig. 8‒40
