Displacement Pump - Graco 824910 Instructions Manual

NOTE: Packing Repair Kit 239939 is available. Refer-
ence numbers of parts included in the kit are marked
with an asterisk, i.e., (223*).
Removing pump (See Fig.8)
Torque to
1
50 ft-lb (68 N
m)
Apply pipe
2
)
sealant (110110
12
11
18
48
213
17
1
43
47
2
50
Fig. 8
1.
Relieve pressure; page 3.
2. Flush pump, if possible. Relieve pressure. Stop
pump with piston rod (222) in its lowest position, if
possible. To lower piston rod manually, rotate
motor fan blades.
3. Remove filter (48).
4. 824912. Unscrew drain hose from inlet adapter
(43). Remove drain hose by unscrewing displace-
ment pump nipple (36).
5. 824910. Remove suction tube. Remove drain hose
by unscrewing from displacement pump
nipple (36).
6. Use a screwdriver to push retaining spring (15) up
and push out pin (14).

Displacement Pump

14
215
15
*214
222
*227
36
213
824912
TI0042
7. Loosen screws (17). Remove pump (18).
Repairing pump
See manual 308815 for displacement pump repair
instructions and parts.
Installing pump (See Fig. 8 and 9)
15
201
Fig. 9
1. Lightly grease or oil transducer (67). See Fig. 15.
Guide pump over alignment pins and pressure
transducer. Tap it into position with a soft hammer.
Tighten screws (17) to 50 ft-lb (68 N
m).
2. Align hole in rod (222) with connecting rod assem-
bly (12). Use screwdriver to push retaining spring
(15) up and push in pin (14). Push retaining spring
into place around connecting rod.
WARNING
MOVING PARTS HAZARD
Be sure retaining spring (18) is firmly in
groove all around, to prevent pin (14)
from working loose. See Fig. 9.
If pin works loose, parts (including pump connect-
ing rod or bearing housing) could project into the air
and cause serious injury or property damage.
3. Reconnect suction and drain hoses (47, 50). Install
front cover (11).
4. Tighten packing nut (202) enough to stop leakage,
but no tighter. Fill packing nut full with Graco TSL.
Push plug (201) into packing nut.
14
202
7840A
309069 11