SPP Pumps Auto Prime Hydraulic Submersibles - S4T - Manual (Page 7)

Operators Instructions for
HYDRAFLOW S4T Hydraulic Submersible Pump
Manual No/Rev
W79-008E / 4
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
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hydraulic oils of viscosity below 150SSU @
38°C (100°F) or equivalent specification.
Note: When using vegetable (Rape Seed) based
bio-degradable oil it is important to check
the condition of the oil frequently as it tends
to breakdown more quickly than the more
expensive
mineral or synthetic bio-
degradable oils.
NOTE – DO NOT MIX OILS
Look especially for a darkening in colour as
an
indicator of reduced lubrication
performance or contamination and arrange
to drain the system, clean the tank and
replace with new oil.
6.1.2 Lubricating Oil:
Use clean Bio-degradable Hydraulic 46 Oil
or 20W Hydraulic Oil or Mobil 10W30
Synthetic Oil.
6.2 Maintenance Chart
Period Maintenance Items Required
Daily Check hydraulic hoses for damage and replace as required. Spare hydraulic hoses
Check Diesel fuel level, top-up as required. Diesel Fuel
Check Hydraulic oil level, top-up as required. Hydraulic Oil
250 hours Check the level and condition of the oil in the bearing
housing and top up if necessary.
Hydraulic Oil
500 hours Replace hydraulic oil filter element. (10 micron filter) Oil Filter Element.
1000 hours Drain hydraulic oil, clean the reservoir tank and replace with
new oil.
Replace the oil in the pump bearing housing
Hydraulic Oil (100 l)
Cleaning Solvent
Hydraulic Oil
6.3 General
The routine maintenance required under
normal use is to check oil in the bearing
housing (#10) before each new job and
after each 250 hours running time. The
level should be at the spill point of the fill
plug (#11), do not over-fill. The oil may be
slightly discoloured due to seal face wear,
this is normal. This oil is to be 20W
hydraulic oil. Change oil every 1000 hours
of operation. If no oil is present or oil is
emulsified, bearings should be inspected
and shaft seal may need replacement.
Further maintenance may be required if:
(a) Pump discharge volume is inadequate.
(b) Oil leakage from pump is present.
6.4 Pump Disassembly:
1. Hydraulic motor (#5):
2. Because of its extremely long life, close
tolerances, high efficiency and the cost of a
new motor compared to the cost of re-
building it, it is more economical to replace
than rebuild.
3. Remove three (3) bolts (#27) holding the
seal plate (#15) to the volute (#18) and
separate the drive assembly from the
volute.
4. Check bottom surface of the interior of the
volute (#18) for wear. This is not critical
unless wear is at least 1/4" deep.
5. Inspect impeller (#17) for wear. Replace
when trailing edges become extremely
worn.
6. To remove impeller, remove the impeller
locking screw (#22) and retaining washer
(#21), then unscrew impeller. The impeller
is threaded onto the shaft (Right Hand
Threads).
7. Remove the six (6) nuts (#6) holding the
hydraulic motor to the bearing housing and
separate.
8. Check the condition of the "O" ring seal (#7)
and replace if necessary.
9. Check condition of motor shaft spline. It
should be a slide fit into the pump shaft.
10. Rotate pump shaft at impeller end and
check for side play. If roughness or side
play is present, the bearings should be
replaced.
11. Remove the three bolts (#28) holding the
bearing housing to the seal plate and
separate.
12. Visually check the shaft seal (#23) for wear.
Seal replacement is recommended when
disassembling.