Refco RL-4 User Manual

7
Trouble shooting
Condition Possible problem Solution
Pump does not run on full
speed
Oil temperature too low Put the pump in warmer
environment/room
Unsuitable oil – too thick Change with REFCO oil
Pump dirty Change oil
Motor winding defective Call customer service
The connection cable is
too long
Use a shorter connection cable
Supply voltage is too low Pump is designed to work at
+/- 10% of the supply voltage
Motor does not start at all Defective capacitor Change capacitor
Call customer service
Switch defective Replace switch
Motor too hot Let it cool down
Cable defective Replace cable
Motor drones but does not
run, Pump locked up
Oil heavily contaminated Change pump head
Call customer service
Motor runs ⇒ no perfor
-
mance
Broken clutch pin Call customer service
Oil spillage on oil mist 󰊟lter Pump over󰊟lled with oil Adjust oil to half level of
sight glass, drain additional oil
Extensive oil mist from oil
mist 󰊟lter
Pump pressure = atmosphe
-
ric pressure
Oil mist will disappear as soon
as a certain vacuum has been
reached
Oil not visible in sight glass Not enough oil in pump Top up with oil
Oil cloudy or dark Contaminated oil Change oil
Not enough vacuum Gas ballast open Close gas ballast valve
Call customer service
Loose cap on intake port Screw the cap on tightly
O-ring in the intake port cap
is faulty
Replace O-ring
Oil level too low Re󰊟ll oil
Oil is muddy (cloudy) or
contaminated
Change oil
Pipe leaking Check pipe, seal it
Pump is worn out after
lengthy use
Repair or replace pump
Motor noisy Bearings worn out
Defective fan impeller
Call customer service
Change impeller
Defective ventilator Replace ventilator
Pump loses oil Leaking gasket of oil box Change O-ring
Oil draining screw leaking Replace oil draining screw
Leaking gasket of sight glass Change sight glass
Leaking gaskets box screws Change gaskets of oil of screws
Leaking shaft seals Call customer service

Refco RL-4 Specifications

General

Brand	Refco
Model	RL-4
Category	Water Pump
Language	English