Instructions / Assembly

Maintenance PS 2 500 / PS 2 750 / PSA 2 500
26 wc_tx002001gb.fm
5 Maintenance
5.1 Periodic Maintenance Schedule
The table below lists basic machine maintenance. Tasks designated
with check marks may be performed by the operator. Tasks
designated with square bullet points require special training and
equipment.
(1) If the insulation resistance has become noticeably lower than the previous inspection, an inspec-
tion of the motor will be necessary.
(2) See Inspecting Lubricant and Replacing Lubricant in this section.
(3) Specialized know-how is required for inspecting and replacing the mechanical seal. Consult with
your nearest dealer or Wacker Neuson representative.
(4) Consult with your nearest dealer or Wacker Neuson representative regarding overhauls.
Maintenance and Inspection
Pump
Weekly Monthly Every
1000
hrs.
Every
2000
hrs.
Measure insulation resistance.
Reference insulation resistance =
1MΩ or greater. (1)
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Measure operating current.
Compare with rated current.

Measure supply voltage.
Compare with allowable range (within ±5% of rated
voltage).
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Pump inspection.
A noticeable drop in performance may indicate
wear in the impeller, etc., or else clogging of the
strainer, etc. Remove the clogged debris and
replace any worn parts.

Lubricant inspection.

Change lubricant.

Designated lubricant: SAE 10W/20W. (2)

Change mechanical seal. (3)

Overhaul.
This should be carried out even if there are no prob-
lems with the pump. The frequency depends on
how continuously the pump is in use. (4)
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