8
SERVICE
With a minimum of moving parts and top quality precision engineering
the pump will give many years of trouble free service. Should service re-
placement seals be required, a kit is available from your nearest dealer
under the following part code: PC45-sk
During disassembly carefully note the order of the components and
keep everything scrupulously clean, especially the
pump faces with the plastic shim gasket or o-ring. When re-assembling,
lubricate the check valve piston and gears with
hydraulic fluid and ensure that all parts move freely. A smear of grease
on the o-rings will aid assembly without damage.
Evenly torque tighten the four M6 pump socket head cap screws to 10
Ibs/lft (13.5 Nm). The gears must turn easily at this stage.
FILTERS
Constant running pumps are equipped with internal return-line filters
which must be changed after the first 50 hours and then annually. Spare
filters can be ordered under the part code: R2690
To access the filter first drain the tank then undo and remove the clamp
ring. Carefully withdraw the tank taking great care not to distort the tank
or damage the O ring seal or tank lip. The filter is secured with a single
nylock nut. Once the filter is replaced tighten the nylock nut until the fil-
ter is secure then fit the new O ring and re-fit the tank. A smear of gen-
eral purpose grease will aid assembly.
BRUSHES
Inspect the motor brushes every 500 hours, or annually, for wear.
Replacement motor brushes are available from your dealer. State the
serial number of your unit when ordering.
Be sure to clean out all loose carbon before fitting new brushes.
If fluid has entered the motor, degrease the brush gear and commutator
before running the unit, otherwise arcing will reduce brush life.
