Maintenance Schedule; Troubleshooting Chart - Speedaire 4LW38 Manual De Instrucciones

Speedaire Operating Instructions
Speedaire
Air Compressors

MAINTENANCE SCHEDULE

Operation
Check Safety Valve
Drain Tank (See Figure 5)
E
Check Oil Level
N
Check Air Filter
G
Check Intercooler
L
I
Clean Unit Components
S
Check Belt Tightness
H
Change Oil (See Figure 3)

Troubleshooting Chart

Symptom
Excessive noise in opera-
tion
Knock – same cycle as
RPM of pump
Knock occurs while com-
pressor is loading
Milky oil in oil reservoir
Excessive oil consump-
tion
® Gasoline Engine
Daily
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Possible Cause(s)
1. Loose pulley, flywheel, belt,
belt guard, cooler, clamps or
accessories
2. Lack of oil in crankcase
3. Piston hitting the valve plate
4. Compressor floor mounting
loose
5. Defective crankcase
6. Excessive crankcase end play
1. Main bearings
2. Connecting rod bearings
3. Loose flywheel
1. Connecting rod bearings
2. Wrist pins, wrist pin bearings
3. Loose connecting rod nut
Water entering oil reservoir due
to compressor operating in high
humidity environment
1. Restricted air intake
2. Oil leaks
3. Worn piston rings
4. Wrong oil viscosity
5. Compressor tilted too much
6. Scored cylinder
Two Stage Gasoline Air Compressors
Weekly Monthly
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Corrective Action
1.Tighten
2. Check for possible damage to bearings, replenish oil
3. Remove the compressor cylinder head and inspect for foreign
matter on top of the piston. Replace with a new gasket and
reassemble the head
4. Tighten
5. Repair or replace
6. Adjust and shim properly
1. Replace bearings
2. Replace rod
3. Tighten
1. Replace rod
2. Replace complete piston assembly
3. Tighten
a. Pipe air intake to less humid air source
b. Service unit (change oil, clean or replace air cleaner
element, drain tank) more often
1. Clean or replace air filter
2. Tighten bolts or replace gasket
3. Replace rings
4. Drain oil, refill with oil of proper viscosity. See "Pump Lubrication"
5. Level compressor
6. Replace cylinder and rings
6
3 Months
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