B. ELECTRIC MOTOR FAILS TO START OR FAILS TO RUN
PROBABLE CAUSE
POSSIBLE REMEDY
Leads not properly connected in conduit box
Connect leads properly (Sect. U, Para. El or E2)
Magnetic starter not wired properly
Connect leads properly (Sect. 11, Para. El or E2)
Magnetic starter switch or pressure switch defective.
Replace or repair a defective magnetic starter switch or
pressure switch. (Sect. IX, Para. B)
Line voltage of incoming power source incorrect
Determine incoming power source and make correct
connections.
Motor defective
Replace motor (Sect. VIII, Para. B)
C. ELECTRIC MOTOR REVERSES
PROBABLE CAUSE
POSSIBLE REMEDY
Wiring incorrect
Correct wiring (Refer to Fig. 3)
D. ELECTRIC MOTOR OVERHEATS
PROBABLE CAUSE
POSSIBLE REMEDY
Line voltage low from power source
Connect to proper power source
V-belts out of alinement
Aline V-belts (Sect. X, Para. E3)
Compressor faulty
Refer to compressor troubles (Para. G thru L)
Ventilation insufficient Insufficient lubrication
Provide proper ventilation Lubricate the air compressor
as directed in the lubrication chart (Refer to Fig. 10)
E. ELECTRIC MOTOR NOISY
PROBABLE CAUSE
POSSIBLE REMEDY
Electric motor mounting bolts or brackets loose
Tighten mounting bolts and brackets.
Electric motor interior dirty
Replace electric motor (Sect. VIII, Para. B)
Electric motor bearings worn
Repair electric motor (Sect. VHI, Para. B)
V-belts improperly adjusted
Adjust V-belts (Sect. X, Para. E3)
F. ELECTRIC MOTOR DOES NOT CUT IN AT 140
PSI, AND CUT OUT AT 175 PSI
PROBABLE CAUSE
POSSIBLE REMEDY
Pressure switch not set properly
Adjust pressure switch (Sect. IX, Para. B)
Pressure switch defective
Replace or repair pressure switch (Sect. IX, Para. B)
Incoming power source disconnected
Connect air compressor incoming power source
G. COMPRESSOR PUMPS TOO SLOWLY
PROBABLE CAUSE
POSSIBLE REMDEY
Intake air muffler clogged
Service intake air muffler (Sect. VI, Para. B)
V-belts improperly adjusted
Adjust V-belts (Sect. X, Para. E3)
Oil level low
Check oil level in crankcase and fill in accordance with
lubrication chart. (Refer to Fig. 10)
Intake and exhaust valves faulty
Clean or replace valves (Sect. X, Para. H)
Air leakage in unit
Tighten connection
Load too great for compressor capacity
Reduce load requirements of compressor
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