Prowinch PWJTHF, User Manual

Page: 37 / 51

Version 1.0
37
Inspection & Maintenance
37
Items
Inspection
Method
Standards Correction
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 confirmation 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 operation 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
Chain
Length of spring Replace chain spring
Standard Limits
Ø6.3 145 140
Ø7.1 145 140
Ø10.0 135 129
Ø11.2 160 152
V.07.22 [LA]