Van Air Systems FR-400 - Manual (Page 10)

PAGE 10
SHUTDOWN SECTION 7
Disconnect the power supply to the dryer system.
If maintenance is to be preformed on the dryer system, make sure the
dryer system is completely depressurized. Tower pressure gauges
must read 0 PSIG before removing any item on the dryer system.
STORAGE SECTION 8
8.1 REMOVE THE PREP-40 FROM SERVICE
Shutdown the dryer system per SECTION 7.
Close the ball valve on the afterfilter.
The pre-cooler air motor needs to be flushed to remove excessive
dirt, foreign particles, moisture and/or oil that accumulate in the air
motor during normal operation. Flushing helps to maintain proper
motor performance and extend service life.
Perform Flushing procedure, per SECTION 8.2, when Prep-40 is
to be idle for more than 5 days, or if it is to be placed in storage.
Use only Van Air Flushing Solvent (p/n 26-7157). DO NOT use
kerosene or ANY other combustible solvents to flush the air
motor.
8.2 FLUSHING PROCEDURE
Remove the pipe plug in the air supply line near the air motor.
Remove exhaust muffler from air motor.
Spray flushing solvent (Van Air p/n 26-7157) into air motor through tee
for 5 to 10 seconds.
Rotate motor shaft/fan, by hand, for one minute in each direction.
Reinstall the plug in the tee and cover the exhaust port with a cloth.
You must wear eye protection for this step.
Restart the motor at a low pressure (approximately 10 PSIG) and run it
until there is no trace of solvent in the exhaust air.
Listen for changes in the sound of the motor. If the motor sounds
smooth, the Prep-40 is ready for storage. If the motor does not sound
like it is running smooth, the motor will need to be serviced.
DO NOT ATTEMPT TO REMOVE OR REPAIR ANY PART OF THE
SYSTEM UNTIL IT IS COMPLETELY DEPRESSURIZED.
SERIOUS PERSONAL INJURY MAY RESULT IF THIS SAFETY
RULE IS NOT FOLLOWED.
INSPECT VESSEL, INSIDE AND OUT, REGULARLY FOR
BULGES, CORROSION, DENTS, GOUGES OR LEAKS. IF
DAMAGED, REMOVE FROM SERVICE IMMEDIATELY AND
NOTIFY YOUR CERTIFYING AUTHORITY.
WARNING
8.3 CLEAN THE EXHAUST MUFFLER
Disassemble the exhaust muffler that was removed in STEP 8.2.
Clean the felt and reassemble the exhaust muffler.
Install the exhaust muffler on the air motor.
8.4 SET THE REGULATOR FOR THE AIR MOTOR
Set the regulator for the air motor per FIGURE 5C.
8.5 PREPARATION FOR STORAGE
Open the ball valve on the afterfilter to completely depressurize
the Prep-40 system.
If long term storage is required, cover the inlet and outlet air
connections to prevent the accumulation of dirt and debris on the
piping.
8.6 STORAGE
Store the Prep-40 in location that is free from extreme humidity
and corrosive gasses, which can cause damage to the unit.
Shut off the air supply to the Prep-40 dryer system. Turn the dryer
system off by placing the Power Switch to the OFF position.
Manually drain the separator/prefilter by lifting the manual override
collar, on the separator/prefilter automatic drain, until no more fluid is
discharged. Manually drain the prefilter by lifting the manual override
collar, on the prefilter automatic drain, until no more fluid is discharged.
Open the ball valve on the afterfilter and completely depressurize the
dryer system.