Speedaire 4LW38 Manual De Instrucciones página 7

Speedaire Operating Instructions
Speedaire
Air Compressors
Troubleshooting Chart (Continued)
Symptom
Oil in discharge air
Compressor vibrates
Air blowing out of inlet
Insufficient pressure at
point of use
Tank does not hold pres-
sure when compressor is
unloaded
Excessive belt wear
Excessive discharge air
temperature
Tank pressure builds up
slowly
® Gasoline Engine
Possible Cause(s)
1. Compressor air intake
restricted
2. Worn piston rings
3. Excessive oil in compressor
4. Wrong oil viscosity
1. Mounting bolts loose
2. Compressor not properly
mounted
3. Pulley and flywheel mis-
aligned
4. Belts loose or mismatched
5. Bent crankshaft
Broken inlet valve
1.Leaks or restriction
2. Restricted air intake
3. Slipping belts
4. Service hose or pipe too
small
5. Excessive air requirement
6. Broken valve
Air leak in system
1. Pulley out of alignment
2. Belts too tight
3. Belts too loose
4. Pulley or flywheel wobble
5. Damage in belt groove of
pulley or flywheel
1. Dirty cooling surfaces
2. Poor ventilation
3. Blown head gasket
4. Restricted air intake
5. Worn valves
1. Dirty air filter
2. Blown cylinder head gasket
3. Worn or broken intake or dis-
charge valves
4. Air leaks
5. Loose belts
6. Speed too slow
Two Stage Gasoline Air Compressors
Corrective Action
1. Clean air filter element and check for other restrictions in the
intake system
2. Replace rings
3. Drain down to proper level
4. Check viscosity. See " Pump Lubrication"
1. Tighten
2. Level compressor so that all feet touch the floor before
tightening down. Use shims if necessary
3. Realign
4. Tighten belts. See "Maintenance" section
5. Replace crankshaft
Replace valve plate assembly
1. Check for leaks or restriction in hose or piping. Repair or replace
2. Clean or replace air filter element
3. Tighten belts, See "Maintenance"Δ section
4. Replace with larger hose or pipe
5. Limit air usage to compressor capacity by using fewer or
smaller tools
6. Replace reed valve assembly
Locate and repair leak
Never attempt to repair or modify a tank!
1. Realign motor pulley with compressor flywheel
2. Adjust tension. See "Maintenance" section
3. Adjust tension. See "Maintenance" section
4. Check for worn crankshaft, keyway or pulley bore, resulting
from running with loose pulleys. Check for bent crankshaft
5. File smooth or replace
1. Clean cooling surfaces of cylinder, intercooler and discharge tube
2. Improve ventilation or relocate compressor
3. Replace head gasket
4. Clean or replace air filter element
5. Replace valve plate assembly
1. Clean or replace filter element
2. Install new gasket
3. Install new valve plate assembly
4. Tighten joints
5. Tighten belts. See "Maintenance" section
6. Check speed. See "Performance" chart
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