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
4-5
Frame (Hoist Body)
The frame (hoist body) is constructed of aluminum and, unless damaged from abuse (impact with
another hoist or building structure), requires no maintenance. Any hoist with a frame that is no
longer serviceable for any reason should be referred to the factory for replacement/repair.
Load Chain
CAUTION
A hoist shall never be used if the load chain shows any evidence of
mechanical damage or excessive wear.
The replacement load chain shall be of exact size, grade and construction as the original load
chain that was furnished with the hoist from the factory. Only use R&M load chain as specified
in this manual.
Clean and lubricate the load chain at regular intervals.
Improper load chain storage or installation procedure can render the load chain unusable prior to
the first lift.
Load Chain Inspection
Load chain inspection shall be conducted weekly by a designated person using good judgment in
evaluating the remaining service life. Any deterioration of the load chain resulting in appreciable
loss of the original strength, such as situations described below, shall be noted and evaluated. If
any of the links show cracks or signs of distortion, the chain must be replaced immediately.
A monthly inspection shall include a written record, dated and signed by the inspector.
Test the hoist under load in lifting and lowering directions and observe the operation of the chain
and sprockets. The chain should feed smoothly into and away from the sprockets.
If the chain binds, jumps, or is noisy, first see that is clean and properly lubricated. If the trouble
persists, inpect the chain and mating parts for wear, distortion, or other damage.
Examine visually for gouges, nicks, weld splater, corrosion, and distorted links. Slacken the
chain and move the adjacent links to one side to inspect for wear at the contact points. If wear is
observed or if stretching is suspected, measure the chain for wear as outlined in Load Chain
Replacement Section.
Main items to record regularly:
1. Poor lubrication of load chain.
2. Wear of link on outside and on inside contact points.
3. Crushing, kinking, or signs of distortion.
4. Reduction of original diameter by more than 10%.
During inspections evaluate those sections of chain, which are
normally hidden, such as sections that pass over load wheels.
