KI-OM-0591 Rev 3
21
Maintenance
Note
Pressure irregularities are not a definitive diagnosis of pump faults and it is
essential to carry out full fault finding in order to maintain the unit operation.
Before servicing the pump it is prudent to carry out checks on the following:
• Inlet plumbing for size
• Restriction and/or air leaks
• Condition of the by-pass valve
• Condition of the pressure gauge
• Shut-off valves in the inlet or discharge plumbing to be sure they are fully open
4.3.2
Pump Service
JFD advises that the service of the CAT pump on the WHE-3 unit should be carried out by an
approved CAT service agent or JFD regional office.
4.3.3
Ordering of Parts
When ordering parts, be sure to give the model and serial number of the pump in addition to
the part number, description and quantity of the items required.
4.3.4
Material Returns
Should it become necessary to return a Cat Pump, please secure approval and shipping
directions from JFD. Items authorised for return must be shipped with freight prepaid. A full
description of the operating conditions, medium being used and full details of the problem
with the pump.
4.3.5
Filter Inspection
The most common cause of low pump pressure is damage due to foreign matter carried in the
fluid being pumped. Small abrasive particles in the fluid may damage the pump valves, valve
seats, cylinder walls, cups and block the filter screens. It is essential to ensure that the fluid
being pumped is properly filtered to increase the service life of the pump. The inline filter
cartridges of the WHE-3 should be inspected and replaced at regular intervals as required.
The unit should not be run with blocked or damaged filter cartridges or without filter cartridges
in the filter housings as this may cause damage to the pump.
4.4
Pump Specifications
Flow Rate
45 l/min
Pressure Range
7 to 155 bar
Inlet Pressure Range
1.4 to 4 bar
Speed
1150 rev/min
Maximum Fluid Temperature
71°C
Crankcase Capacity
1.26 ltr
Inlet Ports
3/4” NPTF
Discharge Ports
1/2” NPTF
Pulley Mounting
Either Side
Shaft Diameter
30 mm
Weight
19.9 kg
Содержание WHE - 3
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