Wacker Neuson PSA2 500, Operator'S Manual, Page: 25 / 60

PS2 500 / PSA2 500 Maintenance
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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 inspection 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.
Pump Weekly Monthly Every
1000
hrs. Every
2000
hrs.
Measure insulation resistance.
Reference insulation resistance =
1M
Ω
or greater. (1)

Measure operating current.
Compare with rated current.

Measure supply voltage.
Compare with allowable range (within ±5% of rated voltage).

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 problems with
the pump. The frequency depends on how continuously the
pump is in use.
(4)
