Haulotte Group 3522A, Operator'S Maintenance Manual

Page: 139 / 142

HAULOTTE GROUP 9 AXLE AND RELATED COMPONENTS
139
MOUNT
STOP
CABLE BRAKE
CABLE
BODY
BAR
AXLE
BALANCE
BRACKET
RELEASE
BRAKE
BRAKE
CABLE
3" MIN.
BRAKE
BACKER
PLATE
AERIAL WORK PLATFORMS WITH DRIVE AND SET BRAKES
1 All brake adjustments must be done with the aerial work platform’s wheels off the ground, with
the
ROD
and
BRAKE CABLES
completely slack (no tension).
Refer to Figure 2 for steps 2 through 7.
2 Locate the
BRAKE ADJUSTER NUT
(not shown) on the rear of the
BRAKE BACKER PLATE
.
3 While rotating the wheel in the forward direction, turn the
ADJUSTER NUT
clockwise until the
wheel locks, (this centralizes the shoes in the drum).
NOTE
: Never turn the wheel in the opposite direction for this adjustment.
4 Loosen, or “back off” the
ADJUSTER NUT
,
by turning the nut counter clockwise while rotating the
wheel in the forward direction; turn the nut until there is a slight rubbing of the shoes on the
drum.
5 Repeat steps 2-4 to adjust the other brake.
6 Confirm that the
BRAKE CABLES
are attached at both ends. Each cable has two threaded ends,
a dished washer and two nuts, fitted to each cable stud and locked together. Check the end that
is connected inside the brake hub first. Next confirm that the
BALANCE BAR
is parallel to the
AXLE BODY
, then check the other end of the
BRAKE CABLE
, it should pass through the
CABLE
STOP
and should be secured with a nut at the
CABLE STOP
, the cable then passes through the
BALANCE BAR
and is secured with a M8 washer (0096-0104) and two M8 nuts (0096-0149) for
locking.
NOTE:
The washer and nuts must be on the front side of the
BALANCE BAR
.
7 Confirm that the M10 x 1.5 x 32” (A-03677) fully
THREADED ROD
(
BRAKE ROD
), passes through
the slots of the
CABLE BRAKE MOUNT
and
BRAKE RELEASE BRACKET
, then through the center
holes of the
BALANCE BAR
and
CABLE STOP
, and has approximately three inches (3”) of the rod
behind the
CABLE STOP
. Check that the two (2) M10 nuts (0096-0114) and the dish washer are
assembled between the
BALANCE BAR
and
CABLE STOP
. This ensures that the rod will not be
pulled through and become unsupported. Check that two (2) M12 large O.D. washers (0096-
0046), one (1) M10 large O.D. washer (0096-0093) and two (2) M10 nuts (0096-0041) are
placed between the
BALANCE BAR
and the
BRAKE RELEASE BRACKET
.
NOTE
: Make sure that the washer and nuts between the
BALANCE BAR
and the
BRAKE RELEASE
BRACKET
, DO NOT
interfere with the movement of the
THREADED ROD
.
Figure 9-2. Drive & Set Brake Adjustment Procedure