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Troubleshooting
Troubleshooting
Problem
Air motor will not run.
Air continuously exhausting around
air motor shaft.
Air continuously exhausting from
muffler.
Air motor "bounces" at top of stroke.
Air motor "bounces" at bottom of
stroke.
Slow motor reversal.
Icing on muffler.
14
Cause
DataTrak solenoid engaged. Dam-
aged main air valve spool or pop-
pets.
Runaway occurred (DataTrak mod-
els only).
Damaged air motor shaft seal.
De-icing control is open.
Damaged air valve carriage, plate,
or seal.
Damaged bottom poppet.
Damaged top poppet.
Plugged poppet muffler.
Air motor operating at high pressure
or high cycle rate.
Solution
Rebuild main air valve. See page 16.
Replace poppets (12). See page 22.
See Runaway on page 9.
Replace air motor shaft seal (7). See
page 20.
Close de-icing control with knob or
flat blade screwdriver.
Replace the carriage (108), plate
(105), or seal (104). See page 18.
Replace bottom poppet (12). See
page 22.
Replace top poppet (12). See page
22.
Remove muffler (58) and clean.
Reduce pressure, cycle rate, or duty
cycle of motor, or open de-icing con-
trol with knob or flat blade screw-
driver.
311238G
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