6 795-93057_0316 Dryer Operation Manual
TROUbLESHOOTING GUIDE. FOLLOW ALL SAFETY PROCEDURES.
PROBLEm
PROBABLE CAUSES
REmEDY
Lift platform does not
oscillate
Cylinder sensor issue
See Figure 4. Check sensors on back of cylinder: sensors
have indicators; verify light illuminates when platform
passes. Replace if necessary.
Air valve assembly improperly adjusted
Remove 2 hoses from main valve. Ensure air is passing
through from cylinder. Bad valves should be replaced.
Lift platform does not
remain in down position
Part has fallen under platform,
preventing it from reaching lowest
position of travel
Remove four slotted screws and platform grid, permitting
access to lift part from tank.
Not enough air pressure: 80 psig min.,
100 psig max.
Check air supply, hoses, and connectors and sensor at
bottom.
Bottom sensor slid to bottom of rail
Check sensor position. Raise sensor to 1” from bottom of
rail (see Figure 4, 4B)
“UP” speed is different
from “DOWN” speed
Speed control muffler is improperly
adjusted.
Adjust the speed control muffler screws (Fig.2A) at the rear
of the lift column. Tighten jam nuts (Fig.2B) when finished.
Lift platform does not
come to “UP” position
Overloaded. Load exceeds
recommended weight capacity
Open lid and use chain hoist to remove heavy part.
Not enough air pressure: 80 psig min.,
100 psig max.
Check air supply, hoses, and connectors and sensor at
bottom.
Blower does not turn on
Air flow restricted
Remove any obstruction keeping air from flowing.
Lid switch is not engaged
Adjust contact plate. Make sure screws are not loose.
Heater not on
Blower blocked, not operating
Check blower filter, remove any obstruction
Differential Pressure Switch opening is
obstructed
Check opening. Make sure inlet is clear. Remove
obstruction if necessary.
Lift platform bangs at full
top or bottom position
Air cylinder cushion screws require
adjustment (Figure 4)
Increase cushion by tightening screws (clockwise) to
reduce banging
Rollers are squeaking
Bearings need grease.
Grease roller bearings. See Maintenance instructions.
Lid won’t open/platform
won’t rise
Air pressure may be too low to lift load
and lid
Adjust mufflers.
Increase air pressure to 100 psig.
If your problem is not listed above or problems persist, please contact graymills for further assistance.1-888-472-9645