Maintenance & service instructions – SPP Pumps Auto Prime Q Series - QI200 User Manual
Page 10

Manual No/Rev
W72-008E / 9
Operators Instructions for
AUTOPRIME Q Range Pump Unit
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 10 of 18
7. MAINTENANCE & SERVICE INSTRUCTIONS
. 
These instructions are for trained pump 
service engineers. 
 
Where instructions in this section are 
followed by (LH) or (RH) this indicates either 
the left hand or right hand side of the unit 
looking from the pump (towbar) end 
7.1 Preparation for Maintenance
Electric Shock & Accidental Starting 
Hazard ISOLATE the equipment from any 
mains 
supply
connected
before
any
maintenance work is done.
For diesel engine driven pumps disconnect 
the negative battery lead to prevent 
inadvertent starting. 
 
To avoid the possibility of maintenance 
personnel inhaling dangerous fumes or 
vapours. 
It
is
recommended
that
maintenance work be carried out away from 
the pump location by removal of the pump 
unit to a suitable maintenance area. 
No special tools are required for dismantling 
and re-assembling, however, it is important 
to ensure the suitable lifting equipment is 
available and that the work is carried out in a 
clean area. 
7.2 Pump Bearings
The pump shaft runs on three bearings: a 
roller bearing on the impeller end of the shaft 
and a pair of angular contact bearings on the 
drive end of the shaft. These bearings are 
grease lubricated. 
 
BRGHSGA
DRIVE END
GREASE 
NIPPLE
PUMP END
GREASE 
NIPPLE
Grease is applied through two grease 
nipples, one for the roller bearing and one for 
the pair of angular contact bearings located 
on the left side of the bearing bracket. Do 
not over grease. Ten strokes (15 grams) of a 
hand held grease gun at the specified 
intervals are sufficient.
7.3 Mechanical Seals
The mechanical seals are cooled and 
lubricated by oil. The oil reservoir is mounted 
on top of the non-return valve cover. The 
system oil capacity is approximately two 
litres. The bottle should be filled to the MAX 
mark when the unit is cold. 
Only use oil of the correct grade 
(see Technical Data section). 
7.4 Fuel Filler Gauge
Located in neck of fuel filler. Inspect for 
debris. Remove and clean if necessary. 
 
 
 
7.5 Coalescer Maintenance 
 
Daily, check the oil level in the coalescer 
sump. If the level has risen, check for water 
contamination, drain off any water present 
and top-up the oil to the level between the 
marks on the dipstick. Water is removed by 
means of the drain tap fitted to the side of 
the coalescer sump. 
7.6 Coalescer Filter Element Replacement
Coalescer filter elements must be replaced 
after the first 500 hours or one month of 
operation of a new vacuum pump, after 
which they need to be replaced only when 
the 
inside
surface
becomes
heavily
discoloured i.e. black or dark brown. These 
elements cannot be cleaned, new elements 
must be fitted when required thus: 
NEWC
OAS3
REMOVE THE COALESCER LID
UNSCREW THE 
ELEMENT CAPS
LIFT ELEMENTS
AND REPLACE
REPLACE THE 
COALESCER
LID
Ensure that the seals at the top and bottom 
of each filter element are fitted correctly. 
ATTENTION
FU
EL
FI
LT
ER
NEWC
OAS1
OIL FILLER
& DIP STICK
EXHAUST
PORT
(FAR SIDE)
COALESCER 
LID
WATER DRAIN TAP
FILTER
MESH
OIL 
SCAVENGE
PIPE
OIL
FEED 
PIPE
OIL
FILTER
