R&M Materials Handling, Inc
STAGEMAKER® COMPACT Concert Hoist
Springfield, Ohio USA
SM5 Manual
: 800 955-9967
Revision 1
web:
www.rmhoist.com
08/14/02
RM-SM5-MAN-2001-1-ENG
4-3
Adjustment of the Limiter
(Refer to Figure 4-3)
WARNING
Make sure that the main switch supplying power to the hoist is in the opened
and locked position before adjusting the torque-limiter.
1.
Hook a load of the percentage indicated in the table below onto the hoist.
Configuration
A
B1
B2
C
D
E
Test load: % of rated capacity
125%
125%
125%
125%
250%
125%
2.
Remove the brake end cap and the seal.
3.
Raise the load at slow and fast speed.
4.
Turn the adjusting nut (5) in the required direction.
•
Turn the adjusting nut clockwise to increase the torque.
•
Turn the adjusting nut counterclockwise to decrease the torque.
WARNING
When decreasing the torque, make sure that there is no load connected to the
load block. Failure to remove load from the load block before performing
this procedure may result in personal injury.
5.
Repeat steps 3 and 4 until the load can barely be lifted at fast speed. The limiter is now
adjusted.
CAUTION
The limiter will generate heat whenever it is slipping. As a result of this, a
massive clutch plate will absorb most of this heat. When the clutch plate
becomes too hot, adjusting the limiter may be difficult due to unstable
behavior of friction surfaces. If this happens let the limiter cool down for a
while and then readjust the limiter.
6.
Fit the brake end cap and seal.
7.
Check, at fast speed, the lifting of a nominal load.
WARNING
Never adjust the torque limiter to allow lifting of more than the maximum
capacity shown on the hoist. Failure to adhere to this restriction may result
in personal injury or property damage.
