Use and Care Manual

11
Water in air receiver tank
1：Condensation in the air receiver。 1：
Drain daily or install an automatic
drain。
Compressor over heating
1：Undersized unit for air requirements。
2：Compressor location。
3：Pump rotating the worn way。
4：Air leaks in the system
5：Restricted air filter。
6：Improper grade or level of oil。
7：Worn，damage，
or carbon build up on
valve。
8：Carbon build up at after-cooler tube
check valve。
1：Contact PUMA compressor
distributor。
2：See installation section。
3：See pump rotation。
4：Fix leaks。
5：Clean or replace filter。
6：Replace with SAE10W-30
non-detergent compressor oil。
7：Clean，repair or replace valves。
8：Clean or replace。
Excessive noise
1：Loose flywheel or motor pulley。
2：Loose valve。
3：Noisy only during start up，Check for
loose belts。
4：Vibrating belt guard，piping or loose
belt。
5：Unit not installed level。
6：Improper grade of oil in crankcase。
7：Carbon or foreign material on piston。
8：Worn bearings。
1：Tighten as required。
2：
Inspect valve for damage replace
as required。
3：Adjust for proper tension
4：Tighten as required。
5：Ensure that unit is mounted
level。
6：Replace oil with SAE10W-30
non- detergent compressor oil。
7：Clean piston。Check cylinder
walls for scoring。
8：Replace main bearings。
Pressure switch unloading
does not function or leak air
when unit is operating or not
operating
1：
Pressure switch unloading may be dirty
or faulty。
2：Check valve may be dirty or faulty。
1：Clean，
repair or replace pressure
switch。
2：Clean，repair or replace check
valve。
Oil leaks or appearance of oil
on the compressor
1：Spillage of oil when filling。
2：Overfilling the crankcase。
3：Improper grade of oil。
4：Leak at oil filler plug。
5：Oil leak at gasket，cap screw，head，
cylinder or crankcase。
6：Loose valve plugs。
7：Loose side or end plate
8：Oil seal leak。
9：Scratch or burn on the crankshaft。
1：Wipe unit clean。
2：Drain oil and fill to proper level。
3：Replace with proper SAE10W-
30
non-detergent compressor oil。
4：Tighten or replace oil filler plug
and/or “O” ring。
5：Replace gaskets as required。
Use pipe dope or gasket
compound on all cap screw
threads。
6：Tighten valve plug。
7：Tighten plates。
8：Replace oil seal。
9：File or sand with emery cloth。