Tuthill KINNEY KC Series, Руководство оператора, Страница: 33 / 48

27
08
Reassembly
Manual 1807 Rev B p/n 001807 0000
On KC-15 models, position the open head
slide pin with the inlet ports in the piston slide
facing away from the discharge side of the
pump. Position the open head slide pin with
the scalloped edge up and the arrow cast into
the slide pin pointing toward the discharge side
of the pump.
7. Install the open head piston and slide pin in the
pump.
8. Check that the open head end of the cylinder
and the cylinder mating surface are both free
of all sealing compound. Apply a thin coat of
Loctite 515 sealing compound to the sealing
faces of the cylinder and head.
Position the open head on the cylinder and
tighten the securing cap screws. Tighten the
open head securing cap screws. Rotate the
shaft to check that there is no binding. If it
binds, gently tap on either end of the shaft a
few times to free it. If tapping does not work,
remove the heads, one at a time, and correct
the problem. Replace the bearings into the
head.
9. Install the shaft seal housing and shaft seal
housing O-ring on the open head. Sealing
compound is not required. Tighten the securing
cap screws.
10. Assemble the shaft seal assembly as follows
(see Figure 6-3) :
a. Apply a light coat of AX Vacuum Oil to the
seat of the shaft seal assembly. Place the
seat gasket on the seat, and carefully slide
the seat and gasket over the shaft into
position on the pump. Press in both pieces
until they are seated uniformly against the
shoulder. Do not damage the gasket or
mar the face of the seat.
b. Coat the rotating portion of the shaft seal
(face, shell, bank, and friction ring) with
AX Vacuum Oil. Cover the retaining ring
groove and the keyway on the shaft with
plastic tape or by forming a thin piece of
metal over the shaft. Coat the shaft and
the metal cover with oil. Carefully push the
rotating portion of the shaft seal over the
shaft by means of a pipe sleeve or a large
washer. Be careful not to damage the seal
face or cut the rubber. Remove the cover
from the shaft.
c. Place the spring and the spring holder
on the shaft and compress the spring
beyond the retaining ring over the shaft
until it snaps into its groove. Assemble the
discharge valve, valve block, two valve
springs, and the two valve guide rods on
the cylinder, replacing them in the same
position as they were removed.
11. Assemble the discharge valve, valve block, two
valve springs, and the two guide rods on the
cylinder, replacing them in the same position
as they were removed.
12. Replace the cylinder cover and gasket, and
tighten the securing cap screws.
13. Replace the gas ballast assembly on the
pump. Tighten it securely.
14. Replace the oil mist eliminator on top of the
pump.
15. Replace any plugs or fittings that were
removed.
16. Replace the pump assembly on the base.
Install the drive key and pump pulley.
17. Replace the V-belt on the pulleys. See V-Belt
on page 7 for more information if desired.
Tighten the drive by moving the motor until
the tightest belt will depress no more than its
own thickness under normal thumb pressure.
Replace the belt guard and secure it in
position.
18. Check that the pump oil drain plugs or
valves are in place, and fill the pump with oil
as described in Filling the Pump with Oil
on page 10 . Test the pump according to
Checking Pump Performance on page 19 .
19. Reconnect the vacuum piping from the process
equipment to the pump suction (inlet).