Table of Contents
Advertisement
Reassembly
1. If it was necessary to remove the ball guide (9) from
the displacement rod (1), place the flats of the rod in
a vise. Apply anti-seize lubricant 222955 to the
threads and mating faces of the rod and the ball
guide. Screw the ball guide onto the rod, hand tight.
Remove from the vise. See Fig. 9.
2. Place the female gland (13*) on the piston seat
housing (12). Install the five v-packings (P) one at a
time with the lips facing up. Refer to pages 30 and
32 for the correct packing order for your pump.
Install the male gland (11*).
NOTE: To convert the pump to a different packing
material, see pages 30 and 32.
NOTE: Service Tool 109507 is available as an
accessory. The tool fits over the top of the displacement
rod (1), making it easier to apply a 24 inch adjustable
wrench or 3/4 in. drive socket when connecting the rod
to the piston assembly.
3. Apply anti-seize lubricant 222955 to the threads and
mating faces of the ball guide (9) and piston seat
housing (12). Place the flats of the piston seat
housing in a vise. Place the ball (10) on the piston
seat. Screw the assembled rod (1) and ball guide (9)
onto the piston assembly hand tight, then torque to
459–481 N.m (338–354 ft–lb).
4. Use an arbor press to reinstall the rod (1) into the
cylinder (7), as follows. (The cylinder is symmetrical,
so either end may face up.) Lubricate the piston
packings (P). With the piston end facing down, lower
the rod into the cylinder. Start the piston into the
cylinder as much as possible, then drive the rod and
piston the rest of the way into the cylinder with the
arbor press.
CAUTION
To reduce the possibility of costly damage to the rod
(1) and cylinder (7), always use an arbor press to drive
the rod into the cylinder, and be sure to place the
cylinder on a soft block of wood. Never use a hammer
to drive the rod.
22
308148
Service
5. Lubricate the o-ring (27*) and seal (6*). Install the
o-ring on the intake seat housing (15). Install the
intake seat housing (15), intake ball (16), ball guide
(14), and seal (6*) in the intake housing (17). Set the
intake housing all the way into the vise.
6. Place the cylinder (7) on the intake housing (17).Tap
on the top of the displacement rod (1) with a rubber
mallet, to seat the cylinder.
7. Lubricate the throat packings (T). Place the male
gland (29*) into the outlet housing (19). Install the
five v-packings one at a time with the lips facing
down. Refer to pages 30 and 32 for the correct
packing order for your pump. Install the female gland
(25*).
NOTE: To convert the pump to a different packing
material, see pages 30 and 32.
8. Lubricate the threads of the packing nut (3), and
loosely install it in the outlet housing (19).
9. Lubricate the seal (6*) and install it in the bottom of
the outlet housing (19). Set the outlet housing on top
of the cylinder (7). Apply thread lubricant to the six
long cap screws (20). Install the washers (33, if
present) and cap screws through the outlet housing
(19) and thread them loosely by hand into the intake
housing (17). Tighten the cap screws oppositely and
evenly, using a socket wrench, then torque to
244–264 N.m (180–195 ft–lb).
10. Screw the housing valve (34) into the valve housing.
Torque to 30–28 N.m (22–28 ft-lb).
NOTE: It is not ordinarily necessary to remove the outlet
fitting (4) and o-ring (5*). However, if they were replaced
because of damage, lubricate the o-ring and place it on
the fitting. Screw the fitting into the outlet housing (19).
Torque to 156–171 N.m (115–126 ft–lb).
11. Reconnect the displacement pump to the air motor
as explained on page 18.
Advertisement
Table of Contents
