Inlet Housing Assembly - Graco Z-Pump Elite Series Instructions Manual

3. Remove inlet valve cap (113) from inlet housing
(106), and remove o-ring (108). See F
F . 4
IG
4. Remove upper check (CC) ball cage (112), check
ball spring (111), ball (110), O-ring (108) and carbide
seat (109).
5. Press lower ball (110) off seat (109) from fluid inlet
and drain the inlet housing (106).
6. Remove lower check (DD) o-ring (108), ball cage
(112), check ball spring (111), ball (110), carbide
seat (109), and o-ring (108). See F
108
106
F . 5
IG
3
3A8563B
. 4.
IG
113
108
106
. 5.
IG
112
111
Upper
Check (CC)
110
108
109
112
111
Lower
110
Check (DD)
109
108
7. Clean all parts in a compatible solvent. Lay the
parts in order for easier reassembly. Inspect each
ball and seat for nicks or scratches then replace as
required

Inlet Housing Assembly

L020S8 Model
1. Assemble upper check assembly (AA). Apply
anti-seize lubricant to the check housing (138),
spring retainer (137) and check valve retainer (144).
2. Install the O-ring (143) and then the carbide seat
(142) into the check valve retainer(144). The check
housing (138) then threads into the check valve
retainer and is torqued to 50 ft-lbs (67.5 N•m).
NOTE: The radius of the carbide seat (142) must face
towards the check housing (138) and the ball (141). See
F . 6.
IG
F . 6
IG
3. Install the ball (141), ball housing retainer (140) and
conical spring (139) into the check housing (138).
4. Install the spring retainer (137) cup side down into
the check housing (138) to trap the spring (139)
until the spring retainer bottoms out into the check
housing. Torque spring retainer to 30 ft-lbs (41
N•m.) See F . 7, page 12.
IG
Repair
141
138
142
143
144
11