Service Manual
September 2016
Mast Components
100
AWP Super Series • IWP Super Series
Part No. 38139
Inspection
Procedure
Inspection Failure
Inspection Remedy
Raised or Turned Pins
Visually inspect for raised
pins.
Raised pins.
Replace both chains on that
column section. Do not
repair just the affected
portion of the chain.
Visually inspect for turned
pins by insuring all the flats
on the "V" heads are
aligned.
Misalignment of flats on all
"V" heads.
Replace
both chains on that
column section. Do not
repair just the affected
portion of the chain.
Chain Side
Visually inspect for wear
patterns on heads of link
pins and outside link plates
where they contact the idler
wheel.
Wear on pin heads or
noticeable
wear in the
profile of the outside link
plate.
link plate wear
Replace both chains on that
column section. Do not
repair just the affected
portion of the chain.
Check alignment of chain
anchors and idler wheels.
Chain Anchors
Visually inspect chain
anchors.
Broken chain anchor
fingers.
Replace chain anchor.
chain anchors
threaded rod
Bent or damaged anchor.
Replace chain anchor.
Twisted or misaligned chain
anchor.
Re-
align chain anchor to
ensure even loading of
chain.
Threaded
rod not visible in
inspection hole.
Replace chain anchor and
threaded rod.
Idler Wheels
idler wheel
Visually inspect chain idler
wheels.
Idler wheels have badly
worn flanges.
Replace idler wheel and
check chain alignment.
Idler wheels have grooves
worn into chain contact
surface.
Replace idler wheel.
Cracked Link Plates
Visually inspect chain link
plates for cracks.
Cracks in any chain link
plate.
Replace both chains on that
column section. Replace
entire chain. Do not
repair
just the affected portion of
the chain.