Powerfist 11G-2-30H, User Manual

Page: 13 / 39

13
PROBLEM CAUSE SOLUTION
Compressor won’t start in cold
temperature Too much back pressure in tank
Discharged battery
Compressor too cold
Using wrong grade oil Release pressure from unloader by pulling toggle
upwards and start the engine.
Recharge
Move compressor to a warmer location.
Use ISO 1001 30W compressor oil in
temperatures above 30
°
F (-1
°
C) and 10W oil
below 30
°
F (-1
°
C).
Low pressure (75 psi) pressure
relief valve opens Intake valve to high pressure
cylinder is plugged Contact authorized service centre.
High pressure (225 psi)
pressure relief valve opens Unloader/check valve blocked Clean or replace the unloader.
Water in the crankcase Condensation
Change oil. Run compressor for longer period
until it is hot, ensuring the discharge valve is
open.
Excessive vibration Loose pulley
Pump or motor not secured
Foundation or frame inadequate
Compressor feet are not level Tighten pulley.
Tighten bolts.
Check mounting. Surface should be level and
strong.
Level with shims.
Excessive oil consumption Defective breather valve
Wrong grade oil
Leaking oil seal
Restricted intake Check breather valve.
Use correct grade of compressor oil.
Replace oil seal.
Check intake system.