BIJUR DELIMON INTERNATIONAL
(919) 465 4448
LOCAL
(800) 631 0168
TOLL-FREE
(919) 465 0516
FAX
WWW.BIJURDELIMON.COM
2100 Gateway Centre Blvd., Suite 109
Morrisville, NC 27560
35994 • R2
08/15
4
Clean or Replace the Upper Valve
1. Unthread and remove the foot valve tube (61) from the pump tube (50) and take out the
connection rod (52) together with the high pressure piston (56).
2. Gently push out the packing assembly (57-60) from the pump tube (50) using a ø19mm tube and
clean it carefully, replace any if damaged.
3. Remove the pin that holds the connection rod (52) to the high pressure piston (56) and unthread
the piston. Take out the components of the upper valve (53-55) and clean them carefully, replace
any if damaged.
4. Assemble the pump following the previous instructions, reversing each step.
Troubleshooting
Symptom
Possible Cause
Remedy
The pump is not working or
there is no grease delivery.
Not enough air supply pressure.
Slowly increase the air supply
pressure.
Some outlet line component is clogged or
closed.
Clean or open the outlet circuit.
There are air pockets in the grease inlet
area.
Stir and compact the grease.
The pump begins to operate very fast.
The drum is empty or the grease level is
beneath the suction tube inlet.
Replace the drum or lower the
suction tube until the inlet reaches
below the grease level.
The pump runs on continuously
after the grease outlet is closed.
There is a grease leak in some point of
the outlet circuit.
Verify and tighten or repair.
Grease is leaking through the
outlet muffl er.
Grease has by-passed to the air motor
caused by worn or damaged packing set.
Replace the worn or damaged parts.
Air is leaking through the
outlet muffl er.
The O-rings of the distributor axle (21) or
the bushings (16) are worn or damaged.
Replace the axle assembly (21) and/
or bushing assembly (16).
The inverter O-rings are worn
or damaged.
Replace the inverter O-rings.
Decrease of the grease delivery.
Dirt in upper valve or the foot valve.
Dismount and clean, replace
if damaged.
Dirt in muffl er (18).
Dismount and clean/replace muffl er.
How to Order
Description
Drum Size
Part #
DP33 Pump
120 lb
F332
400 lb
F334
When ordering, specify by name, description and part number, e.g. DP33 Pump, 120 lb Drum,
Part #F332.
Refer to page 5 for parts reference.
Before starting any kind of maintenance
or repair, disconnect the compressed air
supply and open a downstream valve to
relieve the grease pressure.
