Vestil CART-1100-SS - Manual (Page 14)

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T ROUBLESHOOTING :
Problem Possible Causes Action
Deck does not elevate a. Load weight exceeds lifting
capacity a. Remove load and use
another cart with greater lifting
capacity
b. relief valve set too low b. remove part of the load
c. load cart with rated load,
increase the relief-valve
setting until the rated load will
rise.
Deck rises when the pedal is
pressed down but lowers
when the pedal is returned to
the raised position a. inlet check-valve is leaking a. clean ball and seat
Spongy or jerky deck
movement a. Excessive air in cylinder a. Bleed air as described in
this manual (see “Air Removal
Procedure” on p. 12).
b. debris in roller channel(s) b. inspect rollers, clean
channels
c. hydraulic oil level low c. add oil to within ½” of the
top of the reservoir
Deck lowers too quickly a. release-valve opened too
far. a. Do not over-tighten
b. open slowly
Platform lowers too slow a. pinched hose a. check hose for kinks or
chaffing
b. foreign matter in one or
more roller channels b. clean roller channels
c. Velocity fuse locking up c. bleed air from system (see
“Air Removal Procedure” on p.
12).
Deck rises when the pump
pedal is pressed down but will
not lower a. scissor legs binding a. lubricate pivot points
b. scissor legs bent b. replace bent components
c. release rod not connected
to release-valve c. repair as necessary