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➌
π
∑
∂
XT
XR
XL
HPE
☞
☞
HPV
XH
➥
➟
MAINTENANCE STANDARDS
before carrying out any maintenance whatsoever:
- check that no part of the machinery is live;
- if the pump is coupled to a gas engine, remove the spark plug.
∂ ∑ ASSEMBLY - DISASSEMBLY OF THE PUMP HEAD
1.1 - Unscrew head bolts.
1.2 - Remove the head by rotating the shaft and lever-
ing between head and body.
1.3 - For re-assembly: Invert above instructions, and
keep to torque rates shown on page 8.
➌ INSPECTING INLET/OUTLET VALVES
2.1 - Remove valve caps, slide out inlet/
outlet valves check the condition of the
various components of the valve and well
as the O-Ring, replace if necessary.
2.2 - For re-assembly: Invert previous
operation. Keep to torque ratings as
shown on page 8.
π ∫ REPLACING PACKING AND RECOVERY SEALS
3.1 - Remove the head (See ∂ ), then slide out piston
guides, being careful not the deform them, using
the special extractor pliers.
B
A
➟
➟
1
3
5
6
2 4
5 3 1 7
8 2 4 6
Tightening sequence of head bolts, forXT Series and HPE
Series,
for XR Series and XL Series.
For torque ratings see chart 1.2 page 8.
Valve
kits (see parts catalogue)
Special tool:
extractor
pliers
code980080
(order from
our spare
parts
dept.)
B
A