Yale BATTERY STAR Notice D'instructions page 17

BRAKE ADJUSTMENT/REPLACEMENT
The hoist brake may require periodic adjustment over the life of unit.
The distance the load drifts downward immediately after lifting is
referred to as rollback. If the rollback when lifting rated load exceeds
5 cm, a brake adjustment is necessary. A qualified technician can
follow the steps below to disassemble and adjust the brake assembly
to restore performance.
Disassemble the unit to access the brake components. Refer
to Fig. 13 below, and remove the snap ring and the brake hub
driver. For adjustment, hand tighten the brake hub to fully seat all
components. Re-install the hub driver, making sure the hub driver
pointer is inside the alignment zone as shown below in Fig. 14. The
brake hub must remain tight during the alignment process for proper
orientation.
For replacement, remove all existing brake parts shown in Fig. 13.
Ensure all parts are clean, and all four springs are installed in the
frame during reassembly. Carefully apply a thin coat of Extreme High
Temperature Grease to the threads of the Brake Hub (item 5). Make
sure no grease comes in contact with the friction surfaces. Follow
the brake adjustment procedure outlined above after installing the
remaining brake parts.
Reassemble the hoist and carry out a load test.
1
2
3
Figure 13. Brake Assembly
TROUBLESHOOTING
Table 7. Troubleshooting
Trouble
Hook does not respond to the Remote
Control device.
Hook moves in wrong direction.
BatteryStar
TM
4
5 6
Low or no hoist battery voltage
Low or no Remote Control battery voltage
Remote Control is not connected to the hoist
The upper or lower limits have stopped the
hoist motion
Excessive load
Loose connections in hoist
Remote Control is held upside down
Table 6. Brake Assembly
ITEM NO.
1
2
3
4
5
6
7
Figure 14. Brake Alignment
A
Brake driver pointer
Before using, all altered, repaired, or used hoists that have not
been operated for the previous 12 months shall be tested by the
user for proper operation. First, test the unit without a load, and
then with a light load of 25 kg to be sure that the hoist operates
properly, and that the brake holds the load when the control is
released. Next, test with a load of *125% of rated capacity. In
7
addition, hoists in which load-sustaining parts have been replaced
should be tested with *125% of rated capacity by or under the
direction of an appointed person, and written report prepared
for record purposes. After this test, check that the load limiter
functions. *If load limiter prevents lifting of a load of 125% of
rated capacity, reduce load to rated capacity and continue test.
Probable Cause
17
DESCRIPTION
BRAKE SPRING
COUNTER DISC
RETAINING RING – 19x1.2
LOCK DISC
BRAKE HUB
HUB DRIVER
RETAINING RING - 14x1
A B
B
Alignment zone
WARNING
Remedy
Check "M18 Battery Indicator" on Remote Con-
trol
Check/replace Remote Control batteries
Press the Power Button to connect the Remote
Control to its hoist
This is expected operation
Check "Weight Overcapacity Indicator" on Re-
mote Control
Inspect connections (only by qualified persons)
P/N: 192097707YLEM June 2024
QTY.
4
1
1
1
1
1
1