SECTION TSM 144 ISSUE H PAGE 4 OF 10
FIGURE 6
CUTAWAY FOR MODELS G, GG, H, HJ AND HL4195
CASING
DISASSEMBLY
1. Refer to Figures 7 & 8, page 5 for model to be
disassembled and name of parts. Models 4195 & 495
are disassembled and assembled in the same manner.
The difference between these models is the casings.
2. Mark the head and casing before disassembly to insure
proper reassembly.
3. NOTE: The four valve capscrews, valve and gasket must
be removed from the G-GG 4195-495 model before the
six head capscrews are removed.
Remove the head capscrews.
4. Tilt the top of the head back when removing to prevent
the idler from falling off the idler pin.
5. Remove the idler and bushing assembly. If the idler
bushing needs replacing, see “Installation of Carbon
Graphite Bushings,” page 8.
6. Insert a brass bar or piece of hardwood in the port
opening and between the rotor teeth to keep the shaft
from turning. Turn the locknut counterclockwise and
remove locknut. See Figure 9 or 10, page 6.
7. Loosen the two setscrews in the face of the bearing
housing and turn the thrust bearing assembly
counterclockwise and remove from casing. See Figure
9 or 10, page 6.
8. H, HJ, HL: Remove the snap ring from the shaft.
See Figure 9, page 6.
AS, AK, AL: Remove the bearing spacer from the shaft.
See Figure 10, page 6.
9. Remove the brass bar or piece of hardwood from the
port opening.
ROTOR
IDLER
HEAD
CASING
SHAFT
IDLER PIN
PRESSURE RELIEF VALVE
HEAD GASKET
MECHANICAL SEAL
BALL BEARINGS
SNAP RINGS
DANGER !
Before opening any Viking pump liquid
chamber (pumping chamber, reservoir,
relief valve adjusting cap fitting, etc.)
Be sure:
1. That any pressure in the chamber has
been completely vented through the
suction or discharge lines or other
appropriate openings or connections.
2. That the driving means (motor, turbine,
engine, etc.) has been “locked out”
or made non-operational so that it
cannot be started while work is being
done on pump.
3. That you know what liquid the pump
has been handling and the precautions
necessary to safely handle the liquid.
Obtain a material safety data sheet
(MSDS) for the liquid to be sure these
precautions are understood.
Failure to follow above listed
precautionary measures may result in
serious injury or death.
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