Pump Manual

7
6
Low pressure discharge valve leaking.
Inspect, clean or repair as required.
7
Inadequate ventilation around belt wheel
Relocate compressor for better air flow.
8
Leaking, broken or worn inlet unloader parts
Inspect parts and replace as required.
9
Crankshaft seal worn or crankshaft scored.
Replace seal. Install shaft sleeve if required. Install
Bearing/Connecting Rod Kit.
10
Detergent type lubricant being used.
Drain existing lubricant and refill with proper lubricant.
11
Air leaks in air discharge piping.
Check tubing and connections. Tighten joints or replace
as required.
12
Pressure switch unloader leaks or does not
work.
Realign stem or replace.
13
Lubricant level too high.
Drain excess lubricant.
14
Pressure switch differential too narrow.
Adjust pressure switch to increase differential, if
differential adjustment is provided. Install pressure
switch with differential adjustment feature if
differential adjustment is desired.
15
Extremely light duty cycles.
Run compressor for longer duty cycles.
16
valve dirty or seats worn.
Inspect, clean or repair as required.
17
Drive belts too tight or misaligned.
Adjust belts to proper tension and alignment.
18
Leaking check valve or check valve seat
blown out.
Replace check valve
19
Lubricant viscosity too high.
Drain existing lubricant and refill with proper lubricant.
20
Lubricant level to low
Add lubricant to crankcase to proper level
21
Detergent type lubricant being used
Drain existing lubricant and refill with proper lubricant.
22
Improper line voltage.
Check line voltage and upgrade lines as required.
Contact electrician
23
Compressor valves leaky, broken, carbonized
or loose.
Inspect valves. Clean or replace as required. Install
Valve/Gasket Kit
24
Pressure switch unloader leaks or does not
work
Realign stem or replace
25
Compressor valves leaky, broken, carbonized
or loose.
Inspect valves. Clean or replace as required. Install
Valve/Gasket Kit
26
Compressor located in damp or humid
location.
Relocate compressor or install crankcase heater kit
27
Automatic drain valve clogged, leaking or
defective.
Inspect valve and clean, repair or replace as required.
28
Piston rings damaged or worn (broken,
rough or scratched).
Excessive end gap or side clearance. Piston
not seated, are stuck in grooves or end gaps
not staggered
Install Ring/Gasket Kit