Troubleshooting Chart - Speedaire 1WD21 Instrucciones De Operación Y Manual De Partes

Speedaire
Operating Instructions & Parts Manual
Model 1WD21
Always disconnect unit from power supply and relieve all pressure from air tank before
performing any maintenance. "Lock Out" or "Tag Out" all electric switches. Failure to do so may result in
equipment damage or injury.
Never operate compressor without belt guard in place.
Never use gasoline or flammable solvent on or around compressor unit. Explosion may result.

Troubleshooting Chart

Symptom
Tank pressure builds up slowly
Tank pressure builds up quickly
Discharge pressure relief valve pops off
while compressor is running.
ASME pressure relief valve pops off
while compressor is running
Excessive belt wear
Compressor runs hot
Interstage pressure relief valve pops off
Excessive oil consumption
For Service and Warranty, Call: 1-888-303-1344.
Possible Cause(s)
1. Air leaks
2. Dirty air filter
3. Defective compressor valves
1. Excessive water in tank
1. Defective compressor valves
2. Check valve stuck in closed
position.
3. Defective ASME relief valve.
1. Wrong pressure switch setting
2. Defective ASME relief valve
1. Pulling out of alignment
2. Belts too tight or too loose
1. Improper flywheel rotation
2. Defective compressor valves
3. Dirty air filter
4. Dirty cylinder and/or intercooler
1. Defective compressor valves
1. Dirty air filter
2. Wrong oil viscosity
3. Oil leaks
4. Worn piston rings
5. Scored cylinder
11
Corrective Action
1. Tighten fittings
2. Clean or replace
3. Install new valve plate assembly
1. Drain tank
1. Install new valve plate assembly
2. Replace check valve
Warning – Relieve tank pressure
before servicing
3. Replace valve.
1. Adjust to correct setting
2. Replace valve
Warning – Relieve tank pressure
before servicing
1. Realign motor pulley
2. Adjust belt tension
1. Check for correct rotation
(Counter clockwise when viewed from
drive side)
2. Install new valve plate assembly
3. Clean or replace
4. Clean cylinder fins and/or intercooler
1. Install new valve plate assembly
1. Clean or replace
2. Refill with proper viscosity oil
3. Tighten bolts. Replace gaskets
4. Replace rings
5. Replace cylinder
E
N
G
L
I
S
H