ZEP 440C-G, Руководство по обслуживанию

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17
Pump Maintenance
Operating Instructions and Parts Manual
XW Series Pumps
Plunger Pumps
Figure 10
Figure 12
Figure 14
Figure 11
Figure 15
Figure 16
Figure 13
Service Pumps (continued)
Disassembly:
1. First remove the eight 8mm head
bolts.
2. Place the
screwdrivers as
shown between the
head and crankcase
of the pump, lifting
one up and the
other down. The
head should start
to lift off of the
plungers. (See
Figure 10)
3 . When you
remove the
head you may
notice that some
of the water
seals have stayed on the
plungers and some in the
head. To remove the seals from the
plungers simple turn the assemblies
and pull off. (See Figure 11)
4. If the seal assemblies are in the
head use the reversible
pliers to grab the seal
retainer on the inside of
the outside ring, twist
the retainer in either
direction (this is done
to free the retainer O-
ring which is stuck to
the manifold) and lift out.
(See Figure 12)
5. With your finger
pull out the brass
intermediate guide
ring. (See Figure
13)
6. With your fingers
pull the high-pressure
seal and head ring
out of the head.
(See Figure 14)
7. The low-pressure seal
is located in the brass
seal retainer. Using
the mechanics pick, go in
between the seal
and retainer and
pull the seal straight
out.
NOTE: Models
have a split support
O-ring. (See Figure
15)
8. Remove the seal retainer
O-ring with the mechanics pick.
Assembly:
1. Install the plastic head ring into the
head (the flat side
is on the bottom).
2. Install the high-
pressure seal. Place
the seal so the
open “V” portion
is toward the head
ring. You need to place the
seal at an angle and pull and push
to work the seal into position