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When servicing this pump, use only components provided by Magnum Power Products LLC.
Any use of non-
authorized parts could result in sub-standard performance, damage to equipment and possible injury to personnel.
Use of unauthorized parts will also void the warranty.
WARNING
Use lifting and moving equipment that is in good condition and that has adequate
capacity to prevent personal injury or equipment damage. When lifting the pump end
with chains or cables, position them so the load is balanced and so pump damage
will not occur. Suction and discharge hoses and piping must be removed from the
pump before lifting.
Refer to the troubleshooting section on
to help diagnose operational or performance problems. Only
disassemble the pump components required to remedy the problem condition. Select a clean suitable location for
any required maintenance, and note that all work must be performed by qualified personnel.
PUMP DISASSEMBLY
Under normal conditions, this pump is designed to run maintenance free for extended periods of time because of its
rugged construction. However, all centrifugal pumps contain wear parts that will gradually deteriorate, affecting pump
performance. This pump does contain wear parts and these parts should be replaced as required to maintain optimum
performance.
General maintenance can be performed without removing the pump from the engine. The following instructions
assume a complete disassembly of the pump is required.
INSPECTION COVER AND WEAR PLATE
Once the pump has been drained, clean the drain plug and reinstall into inspection cover. Remove the four hand
lugs and use the two jack screws provided to remove the inspection cover and assembled wear plate. Replace the
wear plate if it is badly worn or scored. To remove the wear plate, remove the four nuts. Inspect the inspection cover
O-rings and replace if necessary.
SUCTION CHECK VALVE
With the inspection cover removed, the check valve can be accessed without removing the suction piping. To service
the check valve assembly, remove the check valve bolt, reach through the inspection cover opening and pull the
Inspection
Cover
Hand Knob (24001101)
4 On Inspection Cover
Jack Screw (5/8-11 UNC x 1.75)
2 On Inspection Cover
3/8-16 UNC Nuts
Lock Washers
Wear Plate
Drain Plug
1 in. NPT Square Head
