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SJ9233 RT, SJ9243 RT, SJ9253 RT, SJ9664 RT 221491AFA
Features and devices Section 3 – Familiarization
FAMILIARIZATION
3.4 Features and devices
3.4-1 Lowered travel position and
elevated travel position
The available MEWP functions depend on these
factors:
▪
MEWP configuration (lowered travel position/
elevated travel position)
▪
Chassis angle
▪
Platform load.
The MEWP is in the lowered travel position when the
platform is below height “A” (refer to Figure 03).
The MEWP is in the elevated travel position when the
platform is at or above height “A” (refer to Figure 03).
When the platform is above the maximum drive
height, the drive function does not work (refer to
Figure 03).
Model A - Height
Maximum drive
height
SJ9233 RT
<2.28 m
(7 ft 6 in)
Full height
SJ9243 RT
<2.72 m
(8 ft 11 in)
Full height
SJ9253 RT
<3.73 m
(12 ft 3 in)
10.06 m
(33 ft)
SJ9664 RT
<4.50 m
(14 ft 10 in)
9.14 m
(30 ft)
A
Figure 03 Lowered and elevated travel position
3.4-2 Drive speed
The drive speed depends on the MEWP configuration
(lowered travel position/elevated travel position).
When the MEWP is in the elevated travel position, the
speed is slower than the speed in the lowered travel
position. Refer to Section 7.3.
3.4-3 Tilt switch
This device senses when the MEWP has passed a
predetermined angle in the longitudinal (front-to-back)
or lateral (side-to-side) direction. Refer to Section 7.5.
When the tilt switch is on, and the MEWP is in the
elevated travel position, it disables the drive and lift
functions. An alarm makes a sound and an amber
light on the lower cross member flashes. If the alarm
makes a sound, fully lower the platform. Level the
MEWP before you raise the platform.
3.4-4 Brake release system
This system disengages the brakes manually before
you push, winch, or tow the MEWP. Refer to
Section 6.2 for the procedure. Refer to Section 3.1 for
the location of the brake-release system.
1
2
1
Brake auto-reset valve plunger
2
Brake hand pump
3.4-5 Freewheeling valve
Refer to Section 6.2 for the procedure on how to
release the freewheeling valve
1
.
1