SPP Pumps Auto Prime Medium Head Open Set - AL Range - Manual (Page 10)

Manual No/Rev
W72-025E / 3
Operators Instructions for
AL100 & 150 Diesel Driven Centrifugal Pumps
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 10 of 12
Remove the four screws holding the filter
cover and remove to expose the air filter
element.
AIR FILTER
25PTFLTA
Air filter 25cfm units
Undo the central nut holding the air filter
cover and remove to expose the filter
element.
AIR FILTER
60PTFLTA
Air filter 60cfm units
Undo the six nuts holding the top cover and
remove the top cover complete to expose
the air filter element.
7.9 High Capacity Air Filter
25cfm and 60cfm vacuum pumps have the
option of a high capacity air filter which is
located externally as shown in Figure 7-8
The high capacity filter is fitted in lieu of the
standard element.
60AFELEA
1
2
High capacity air filter
Undo the screws holding the retaining cover
and remove (1) the cover to inspect the
filter. The element pulls out (2). Note that
the orientation of the unit should be as
shown so that any debris from the filter falls
away from the outlet connection when the
unit is opened. It can then can easily be
swept out with little chance of it entering the
outlet. Replace the cover O ring when the
filter is changed.
7.10 Valve Gear
The main valve assembly is shown below.
The areas arrowed should be checked
regularly for wear or damage. Worn parts
should be replaced. The main valve is
located on the underside of the top cover.
60PTVLVA.PCX
25 & 60cfm main valve assembly
7.11 Surge Control Valve
On 25 and 60cfm priming tanks a surge
control valve is fitted. This should be
checked regularly for signs of wear or
damage. Components arrowed in the figure
below are vulnerable to wear and should be
replaced if worn excessively. The valve seat
should be greased to prevent seizure.
VALVE SEAT
VALVE SPINDLE
KNOB (NOT SHOWN)
VALVE
M8 WASHER
DISTANCE PIECE
SPRING RETAINER
KLIP RING
KLIP RING
SPRING
Surge Control Valve Assembly