5
SERVICE
For your personal safety ensure the air is1.
disconnected from the pump and the uid
discharge is depressurized before any service
is carried out. Be cautious when repressurizing
the system after any service work is carried
out.
During service procedures it is important to2.
avoid any scratching or any other damage to
gasket or bearings surfaces. Keep tools and
benches clean. Be extremely cautious when
assembling or dismantling V-pack ings and O-
rings. Exchange all worn or damaged parts no
matter how slightly damaged they seem.
Clean and grease all gasket, bearing surfaces3.
including O-rings and gaskets with teon
grease when reassembling pump.
Try to use parafn to clean pump parts. If water 4.
based cleaners are used, wipe parts clean &
dry immediately to avoid corrosion.
SYMPTOM POSSIBLE CAUSE REMEDY
The pump is not working or there
is no oil delivery
Not enough air pressure1.
Some outlet line component2.
is clogged or closed
1. Increase the air pressure
2. Clean or open the outlet
circuit
The pump begins to operate very
fast without delivering oil
The drum is empty1.
Oil level is beneath the2.
suction tube inlet
1. Replace the drum
2. Lower the suction tube
The pump keeps on operating
although the oil outlet is closed
There is an oil leakage in1.
some point of the outlet
circuit
Contamination in the upper2.
valve (23) or foot valve (37)
1. Verify and tighten or repair
2. Disassemble and clean,
replace if damaged
Oil leaks out through the air
outlet mufer (14).
Oil has by-passed to the air
motor caused by worn or dam
aged packing set
Replace the uid packing set
Air leaks out through the air
outlet mufer (14).
The air piston o-ring is worn1.
or damaged (4).
The air motor cylinder is2.
scratched (3).
The upper part of the central3.
bar is damaged or scratched
(6).
The air valve mechanism is4.
worn or damaged (5).
1. Disassemble and clean,
replace
2. Replace the air motor
cylinder
3. Replace the central bar
4. Replace air valve
mechanism
Decrease of the oil delivery Contamination in the upper valve
(23) or foot valve (37)
Disassemble and clean, replace
if damaged
TROUBLESHOOTING
MAINTENANCE
Before any service work is carried out the1.
compressed air must be turned off to the pump
or the air coupling disconnected. The uid
outlet must be depressurized completely.
Clean the air lter, remove all pollutants 2.
including condensed water.
Check system for any air or uid leaks.3.
Always keep the equipment clean and remove4.
foreign objects, ensure no pollutants enter
the barrel as these will be pumped into the
system.
When changing the barrel make sure the pump5.
remains clean (Do not put on to oor otherwise
the oil will become polluted).
When depressurizing the system or removing6.
the outlet hose from the pump ensure there
is a container available to drain the excess
uid into.
