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PROBLEM
Pump fails to operate
ollow Pressure Relief Procedure
m a d on, the line, etc., is clogged.
CAUSE
Restricted line or inadequate air
supply
clogged air valves, etc.
Insufficient air pressure; closed or
Exhausted fluid supply
Damaged air velving mechanism;
stalling
Dried fluid seizure of displace-
ment rod (26)
Yarnlng on page 6, and disconnect f
Removing Air Motor or Displacement Pump
i t s stroke.
Flush the pump if possible, then stop
it
at the bottom of
page 6, before proceeding.
Follow the Pressure Relief Procedure Warning on
pump, and remove the pump from i t s mounting.
Disconnect the air and fluid lines connected to the
Loosen the tie rod locknuts (4), then remove the cotter
pin
(3.) and
pull the displacement pump away from the
motor. See Fig 2.
See manual
305982.
supplied, for repairing the air
motor.
SOLUTION
Clear, increese air
Open, clean
and fluid lines
Refill; purge
all
air from pump
Sewice air motor (see 306-982)
packings (18.
23);
always
stop
Clean, check or replace throat
keep TSL in wet-cup
pump at bottom of stroke and
I line. If pump starts again when air
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