R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist LM 16-20-25 - Manual (Page 14)

LM16-20-25 I&M MANUAL/EN/11.30.2010
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3.3 Operational Checks – No Load
Check hoist motor brake function. Run empty load block up or down to check that load block does not
drift more than 1.0 inch [25mm]. If so, adjust brake as described in Section 6.3 of this manual.
Run empty load block down to check that fall stop (located on free end of load chain) makes proper
contact with upper / lower travel safety limit switch and that limit switch functions properly.
Run empty load block up to check that load block makes proper contact with upper / lower travel safety
limit switch and that limit switch functions properly.
Run empty load block up and down several times while checking for proper tracking of load chain.
3.4 Operational Checks – With Load
After completion of no-load operational tests, the user / owner should perform a full load test even though
each complete hoist is load tested at factory.
Lift a near capacity load about one (1) foot [30cm] above floor level. Check that the brake holds load.
Also, check stopping capability of brake when lifting to a stop and lowering to a stop.
Move trolley the full length of monorail or crane beam. Check for any binding of trolley wheels on flange
and/or interference at splice joints, hanger connections / bolts, etc.
Check contact with stops. Contact with stops SHALL only be made with trolley bumpers. Stops that are
designed to make contact with wheels SHALL NOT be used.