Maintenance; Air Filter - Inspection And Replacement; Safety Valve - Inspection; External Brass Check Valve Replacement - Accuspray 93-116-SW Manual General

UNIT CYCLES AUTOMATICALLY WHEN POWER IS ON. WHEN DOING MAINTENANCE, YOU MAY BE EXPOSED TO
VOLTAGE SOURCES, COMPRESSED AIR OR MOVING PARTS. PERSONAL INJURIES CAN OCCUR. BEFORE
PERFORMING ANY MAINTENANCE OR REPAIR, DISCONNECT POWER SOURCE FROM THE COMPRESSOR AND
BLEED OFF ALL AIR PRESSURE.
To ensure efficient operation and longer life of the air compressor outfit, a routine maintenance schedule should be
prepared and followed. The following routine maintenance schedule is geared to an outfit in a normal working environment
operating on a daily basis. If necessary, the schedule should be modified to suit the conditions under which your
compressor is used. The modifications will depend upon the hours of operation and the working environment. Compressor
outfits in an extremely dirty and/or hostile environment will require a greater frequency of all maintenance checks.
Daily:
1. Drain water from the air tank, any moisture separators
or transformers.
2. Check for any unusual noise and/or vibration.
3. Manually check safety valve to make sure of proper
operation.
4. Inspect air filter, replace if necessary.

Air Filter - Inspection and Replacement

Keep the air filter clean at all times. Do not operate the
compressor with the air filter removed. A dirty air filter will
not allow the compressor to operate at full capacity. Before
you use the compressor, check the air filter to be sure it is
clean. If it is dirty, simply pull it out. You may wash it with a
mild detergent and warm water, or replace it.

Safety Valve - Inspection

IF THE SAFETY VALVE DOES NOT WORK
PROPERLY, OVER-PRESSURIZATION MAY
OCCUR, CAUSING AIR TANK RUPTURE OR AN
EXPLOSION. PULL THE RING DAILY ON THE
SAFETY VALVE TO MAKE SURE THAT THE
SAFETY VALVE OPERATES FREELY. IF THE
VALVE IS STUCK OR DOES NOT OPERATE
SMOOTHLY, IT MUST BE REPLACED WITH
THE SAME TYPE OF VALVE.
Units With External Brass Check Valve
Replacement
1. Release all air pressure from air tank and unplug outfit.
2. Remove shroud (if necessary).
3. Loosen the top and bottom nuts and remove the outlet
tube.

MAINTENANCE

ROUTINE MAINTENANCE SCHEDULE
SERVICE INSTRUCTIONS
5. Inspect air lines and fittings for leaks; correct as
necessary.
Each Year of Operation or if a Problem is Suspected:
Check condition of air compressor pump intake and exhaust
valves. Replace if damaged or worn out.
4. Remove the pressure release tube and fitting.
5. Unscrew the check valve (turn counterclockwise) using a
socket wrench.
6. Check that the valve disc moves freely inside the check
valve and that the spring holds the disc in the upper,
closed position. The check valve may be cleaned with a
strong solvent.
7. Apply sealant to the check valve threads. Reinstall the
check valve (turn clockwise).
8. Replace the pressure release tube and fitting.
9. Replace the outlet tube and tighten top and bottom nuts.
10. Replace the shroud (if removed).

Motor

The motor has an automatic reset thermal overload protector.
If the motor overheats for any reason, the overload protector
will shut off the motor. The motor must be allowed to cool
down before restarting. The compressor will automatically
restart after the motor cools.
If the overload protector shuts the motor off frequently,
check for a possible voltage problem. Low voltage can also
be suspected when:
1. The motor does not get up to full power or speed.
2. Fuses blow out when starting the motor; lights dim and
remain dim when motor is started and/or is running.
Motor - Wiring Diagram
The motor connection diagram is located on the side of
motor.
11 — ENG
D22241