ZEP 440C-G, Руководство по обслуживанию

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16
Pump Maintenance
Pump Maintenance
Plunger Pumps
Operating Instructions and Parts Manual
XW Series Pumps
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Service Pumps
Servicing the Valves
The inlet and discharge valves in this
series pumps are all the same. The
valves are located under the six 27mm
hex plugs. The inlet valves are located
on the lower row and the discharge
valves are located on the top row of the
pump head.
Tools required: 27mm socket, ratchet,
needle nose pliers,
mechanics pick and
torque wrench.
Valve Removal:
1. Remove the valve
cap. (See Figure 5)
2. Inspect the valve cap
O-ring for any damage,
replace if necessary. (See
Figure 6)
3. Use the needle
nose pliers to
remove the valve.
(See Figure 7)
4. Use a small probe
to move the poppet
up and down to assure that
the valve is functioning properly
and that no debris is stuck in the
valve.
5. Using the mechanics pick remove
the valve seat O-ring and inspect
for any damage, replace if
necessary.
Valve Assembly:
1. Install the valve seat
O-ring squarely into
the bottom of the
manifold. (See Figure
8)
2. Insert the
valve assembly
squarely into the
port pushing it
into the O-ring.
3. Install the valve
cap and torque
to the proper
specification. (See Figure
9)
Servicing the Packings/Seals
To access the water seals for inspection
or replacement, you will first need to
remove the head of the pump.
Tools required: 8mm hex socket, ratchet,
(2) long screwdrivers, reversible pliers,
mechanics pick and torque wrench.