WhisperAir™ Oil-free Rotary Tooth Compressor
Model Series PCC & PCCMD – 50 HP
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
(T) 1.888.769.7979 • (F) 513.367.3125 • www.powerexinc.com
IN594501AV • 02/2016
Page 26 of 32
Consumable Parts (not covered under warranty)
1.
Intake air filter element.
2.
Oil mist catcher filter element.
3.
Oil and oil filter.
4.
O-rings or gaskets (when used in maintenance
actions).
5.
Inlet Valves diaphragms (when used in
maintenance actions).
Inlet valve assembly has
springs under load. Spring
may pop out and cause injury.
Contact Powerex for instructions.
Oil Type:
Use Powerex Rotary Tooth Compressor oil for
best results. Improper oil may damage compressor,
reduce life or void warranty. Improper oil may lead to
failure of the oil mist catcher and entry of oil into
compressed air.
Motor Greasing:
Use Polyrex EM grease. Contact
Powerex for details of motor greasing.
Overhaul:
When operating hours reach 40,000 or after
5 years, SPM can be used to determine the need for air
end replacement.
Instructions for Inspection and Maintenance:
Lock out and tag out all
sources of energy (power
supply) before servicing. Drain pressure from system
and close and lock out isolation valve if multiple
compressors are connected to the same systems.
Intake Filter Replacement:
1.
Open right front panel, disassemble intake filter.
2.
Remove old filter, clean inside of filter housing;
replace with new filter.
3.
Install filter cover.
4.
Replace panel.
Oil and Oil Filter Replacement
1.
Run compressor until warm.
2.
Turn off unit, lock and tag out electric power and
all sources of energy.
3.
Connect a hose or position a pan to collect oil form
oil drain valve.
4.
Remove plug and open oil drain valve.
5.
Remove oil filter and clean surfaces. Apply a film of
clean oil to new filter gasket and thread. Install
new filter by hand only.
6.
Close oil drain valve and install plug. Remove fill
plug and fill with clean new oil to center of sight
glass. Be careful not to allow dirt or dust to enter
oil fill.
7.
Replace oil fill plug.
8.
Run the compressor for few minutes (no more
than 3 minutes).
9.
Stop the compressor, lock out power and check oil
level. Add oil if needed to return level to center of
sight glass.
To Access Cooling Fan for Cleaning and Checking
1.
Stop the compressor, lock out and tag out power
and all sources of energy.
2.
Open left front, back and left panels.
3.
Remove screws holding cooler panel cover in
place.
4.
Cover electronic drain valve assembly (below
coolers) for protection.
5.
Use a fiber or plastic brush to clean fan – DO NOT
USE A METAL BRUSH – Vacuum off dust. Blow off
if necessary. Use eye and breathing protection as
needed.
6.
Uncover electronic drain valves and close panels.
For Long Term Storage if Compressor Will Not Be in
Use:
1.
Run the compressor at least 30 minutes once a
week to maintain oil flow in the system.
2.
If unit has been off for a more than 90 days,
contact Powerex to restart the unit as if new.
