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3. COMPONENT OPERATION
3.1. AX Pump Operation
The Interlube AX range has been designed to provide
reliable and virtually maintenance free service in the
most demanding applications. The system
comprises an electrically operated 110/240 V pump
with integral controller, and a loom of tubing which
connects each bearing directly to its own respective
pumping unit. Each bearing is fed independently,
meaning that points can be individually calibrated,
and also damage to one line does not affect the rest
of the system. The pumps come in two variations;
the AX1 and AX2 which have 1 & 2 litre top fill
reservoirs and have the motor and controller housed
in the lid, and the AX3 which has a 3 litre reservoir
and has the motor and controller housed in the base.
The motor drives the impellor, which draws grease
into the pumping chamber and also gives a visual
indication of cam rotation. It also drives the cam,
which operates the individual pumping units, and
feeds grease into the tubing. The pumps can operate
with a wide range of lubricants from SAE 80 oil up
to and including NLGI grade 2 grease.
The reservoir paddle (10) is also rotated by the cam
assembly. Paddle (10) rotation ensures positive
lubricant flow to the lubricant injectors.
Each lubricant injector is actuated by its cam (17)
only once per 360
o
revolution.
3.1.1. Filling The Reservoir
Depending on the application, consult with your
lubricant vendor or the authorised Interlube
distributor for a lubricant suitable for the
application. Refer to TECHNICAL DATA for a
guide to lubricant selection.
The initial reservoir fill must be through the grease
nipple (22) or quick coupling (27) on the pump
body (21). This is to ensure against any air pockets
in the reservoir.
NOTE
Be certain to wipe the nipple (22) clean
before filling. Place the dirt cap back on the
lubricant nipple (22) after any service procedures.
The AX reservoir (12) is filled either through the
grease nipple (22) or the Quick Connector (27).
The cam assembly consists of one or more cams
(17) in an offset configuration, with each cam (17)
dedicated to a row of lubricant injectors. As the cam
assembly rotates, the cam lobe actuates the injectors
and lubricant is dispensed.
Subsequent refilling of the reservoir (12) should be
done through the grease nipple (22) or quick
coupling (27 ) to minimise any contaminates from
entering the reservoir.
CAUTION
Do not overfill the reservoir (12). Fill only to
Max Level label (28).
AX1 & 2 CAUTION
If the reservoir (12) must be filled through the
reservoir cap moulding (5), be certain the cap (1)
is secured to the reservoir cap moulding (5) when
finished. Take care to prevent air pockets in
the reservoir.
CAUTION
Stored lubricants must be sealed and properly
kept to remain free of contaminates.
3.2. Programming the AX
AX 1 & 2 Cycle settings are selected through the 4
Dip Switches located on the circuit board (30), inside of
the motor housing assembly (38).
Switch Position
Cycle Time
1
2
3
4
1
2
3
4
6 minutes
15 minutes
30 minutes
60 minutes
ON
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ON
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ON
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ON
