28
Specications
| 28 | Version 1.0
Limit switch
Check by
pushing button
Operate until upper and
lower limit cause
automatic motor
shutdown
Replace limit switch,
disassemble and
clean limit lever
Movement
conrmation
Check by
pushing button
• Load chain can roll up easily
• Motor shutdown immediately when
operation stops
• All movements shutdown when E-stop
button pushed
• Other buttons cannot cause movement
when pushing the E-stop button
• All movements return to normal opera-
tion when E-STOP button relieved
Brake
Check by
pushing button
Brake quickly activates and operation of
bottom hook immediately stops (amount of
movement of the load chain is within 2 to 3
rings)
Chain spring
Visual inspection
and measure
dimensions
Replace chain spring
CHAIN
Length Of Spring
Standard
Ø6.3 145 140
Ø7.1 145 140
Ø10.0 135 129
Ø11.2 160 152