AIR COMPRESSOR - MIDLAND BRAKE MODELS EL-1300, EL.1600
TROUBLESHOOTING GUIDE (Continued)
CONDITION
POSSIBLE CAUSE
RESOLUTION
Noisy operation
Loose drive pulley
Tighten repair, or replace pulley as
necessary.
Restrictions in cylinder head or
Repair or replace as necessary.
discharge line.
Worn or burned out bearings
Replace bearings as necessary.
Compressor not getting proper
Service lubrication system as
lubrication
necessary.
Excessive wear
Overhaul or replace compressor
as necessary.
Compressor not unloading
Defective unloader pins or seals
Replace pins/seals as necessary.
(excessive pressure.)
Defective governor
Repair or replace governor as
necessary.
Reservoir line to governor
Repair or replace line as
restricted
necessary.
Unloader mechanism binding or
Repair unloader as necessary.
stuck.
Gauge defective
Replace gauge as necessary.
Compressor passes excessive oil
Excessive wear
Overhaul or replace compressor
as necessary.
Dirty air cleaner
Clean or replace element as
necessary.
High inlet vacuum (obstructed
Service intake as necessary.
intake).
Small or restricted oil return line
Repair or replace return line as
flooding compressor
necessary.
Excessive oil pressure
Service lubrication system as
necessary.
Defective or worn oil seal in rear
Replace seal as necessary.
bearing cap.
Piston rings improperly installed
Remove and reinstall as
necessary.
Back pressure from engine
Check engine ventilation system,
crankcase
excessive engine blow by (piston
rings).
Intake pipe restricted, too long or
Repair or replace pipe as
too small
necessary.
CTS-4077Y - Page 5
