Maintenance; Operation - Macnaught Powerlube Bedienungsanleitung

4) Insert the suction tube of the pump through the hole in the lid
and follower. The pump is not connected to the lid to allow easy
change over when the drum is empty.
5) Attach the fixed end of the feeder hose to the pump, then the
swiveling end of the hose to your pipework. Use thread tape on all
threaded connections and tighten firmly. The feeder hose must be
long enough for easy pump removal without disconnecting it.
Typical Greasing System
B2 Handpiece
High pressure pipe
P8 Feeder Hose
CAUTION
It is important to read all warnings and operating instructions
before use.
P3 /P6 / P8 CONNECTION
1) Before connecting the air supply the customer should add a
"stop" compressed air cock. The air cock must be a ¼ turn type
(allowing quick closure) and should be located close to the body
of the pump and be easily recognized. There is a wire mesh
strainer located inside the brass air inlet. It is recommended that a
micro fine (5 micron) in line air filter is fitted to ensure maximum
efficiency of the pump. Then connect your air line to the swivel
type, air inlet.
Note P8 model only: Open the air bleeder valve at the pump
outlet. Close the valve when grease appears.
2) Turn on air supply and press the reset button (fig 1) Hold the
grease gun near a waste container, squeeze the gun trigger to
purge the factory test grease from the pump. The system is ready
for use when your grease appears out of the coupler end. Tighten
connections as required.
3) The pump will stall when the system is full of grease.

OPERATION

1) Connect air to the pump and the pump will start operating,
pushing grease through the pump and hose to the grease gun
until 'stall' pressure is reached, at this pressure the pump will stop
(stall).
2) For grease delivery press the trigger on the booster gun. To
stop release the grease gun trigger.
3) When the grease drum is empty, turn off the air supply and
disconnect the air line from the pump.
4) Withdraw the pump from the container and place on a clean
surface.
Note P8 only : Remove the lid, use the chain to reach the fol-
lower handle, it automatically opens the suction release valve
which allows for easy withdrawal of the follower.
5) Remove the follower plate from the container
6) Place the follower centrally in the new drum, then fit the lid and
pump unit.
7) Connect air supply, open the bleeder valve (P8 only) to assist
priming. Close valve when grease appears.
Note: Disconnect the air supply then release the grease
line pressure at the end of each working day.
Hose reel
Air supply
Filter / Regulator
Air Cock
(Fig 5)
COUPLER REMOVAL

MAINTENANCE

CAUTION
Before attempting any maintenance or repairs of this product,
disconnect air supply and squeeze gun trigger to release
pressure.
1) Inspect your pump, high pressure hose and air-line weekly for
any signs of deterioration or damage. Replace any damaged com-
ponents as required.
2) Every 2 weeks or sooner if the pump is used every day apply a
few drops of light oil to the air inlet of the pump.
3) Check the top seal condition hole (Fig 2). A small quantity of
grease indicates seal lubrication is OK. A continuous 'worm' of
grease indicates a worn seal. (Replace if required).
Use the lid handles to move the greasing unit. Do not move
the pump by pulling the air or grease hose.
PUMP UNIT DISASSEMBLY
1) Disconnect the air supply and release grease pressure by
squeezing the grease gun trigger.
2) Remove the grease hose and lid from the pump unit.
3) Remove 4 screws (22) holding cylinder (7) to the base (21).
There is a slot in the base near the valve body (30).
4) Remove the cylinder (7) from the cylinder base (21).
5) Remove cover screw (6) and valve body cover (31).
6) Remove 6 screws (33) holding valve body (30) to cylinder (7)
pull off valve body assembly and valve gasket (28).
7) Pull out 2 brass pins (32) from valve body. Lever out plugs (29)
and (36).
8) Gently push spool (34) out of valve body, and remove "o" rings
(3) and (14).
9) Remove top (long) poppet valve assembly 2,4,5 and 'o'rings
(3).
10) Hold the hex section of insert (23) horizontally in a vice, hold
piston rod (13) as close as possible to the piston (11) with multi-
grips. Remove nut (8), piston (11), washers (9) and 'o' ring (12).
Note: If piston rod is damaged, premature wear can occur to pis-
ton rod seal (18).
11) Remove the strainer tube (53). there are spanner flats on the
bottom of this tube.
12) Remove the circlip (52), primer (51), valve seat (50)and valve
spacer (49).
13) Use a pipe wrench or vice grips to remove the tube link (48).
Note: Repair any damage caused to the tube link with a file and
emery paper.
14) Grip the high pressure suction tube (43), with a pipe wrench,
as close as possible to the top. Remove the high pressure suction
tube.
Note: There is thread sealant on the insert / tube thread.
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