PST3/PSTF3 750
Maintenance
wc_tx000988gb.fm
21
3
Maintenance
3.1
Periodic Maintenance Table
(1)
If the insulation resistance has become noticeably lower than the previous inspection, an inspec-
tion of the motor will be necessary.
(2)
See Lubricant Inspection and Lubricant Change 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
Daily
Monthly
Every 6
months
or
1000
hrs.
Every
year or
2000
hrs.
Every
2–5
years
Measure operating current.
Compare with rated current.
Measure supply voltage.
Compare with allowable range (within ±5% of
rated voltage).
Measure insulation resistance.
Reference insulation resistance =
1M
W
or greater.
(1)
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)
