Adjustment Of The Brake - R&M STAGEMAKER COMPACT SM5 Installation, Operation And Maintenance Instructions

R&M Materials Handling, Inc
Springfield, Ohio USA
: 800 955-9967
web: www.rmhoist.com
Adjustment of the Brake (Refer to Figure 4-3)
The maximum air gap of the brake is 0.022"[0.55mm]. If this value has been reached or will be
exceeded before next inspection, the brake must be adjusted.
When adjusting the brake make sure that the main power switch applying
current to the hoist is in open and locked position and remove the load from
the hook. When testing the brake function, be sure not to touch moving and
rotating parts. Before pressing the control button on the pendant station,
check that the adjusting nut is clear of any misplaced items such as tools.
1. Remove the brake end cap and the seal.
2. Measure the air gap between the anchor disc (7) and the outer ring of the coil with a feeler
gauge. Measure the air gap at least at 3 different points around the coil.
3. Set the air gap to 0.012" [0.3mm].
4. Slightly open the three screws, (10) so that the adjustment nut (11) still touches to the brake
housing. Turn the adjustment nut (11) counterclockwise to reduce the air gap. Turning the
adjustment nut clockwise increases the air gap.
5. Check the air gap after adjusting the brake and make sure that the three screws, (10) are
properly tightened to the Torque Specification in SECTION 5.
6. Check the brake function and adjustment.
7. Run the load chain up and down several times without a load to test the function of the brake.
Then, lift a near-capacity load about 1 foot above the floor level and check that the brake
holds the load.
8. Reinstall the seal and the brake end cap.
08/14/02
STAGEMAKER® COMPACT Concert Hoist
11
10
Air gap
5
X
Figure 4-3
WARNING
4-4
6
7
2
RM-SM5-MAN-2001-1-ENG
SM5 Manual
Revision 1