Graco Husky 715, Инструкция по эксплуатации

Страница: 24 / 36

24 308-444
Service
Reassembly
CAUTION
If you have removed the air valve (A), you must
reinstall it before reinstalling the diaphragms. See
page 16.
1. Grease the shaft seals (30
}
), and install them in
the housing (1). Using a rubber mallet, carefully
drive the bearings (31
}
) flush into the housing so
the holes face out. See Fig. 21.
2. Grease the diaphragm shaft (29
}
) and slide it into
the housing (1).
3. Assemble the air side diaphragm plates (108),
diaphragms (401*), PTFE diaphragms (404*, if
present), and fluid side diaphragm plates (112)
exactly as shown in Fig. 21. Apply medium-
strength (blue) Loctite
R
or equivalent to the fluid
side diaphragm plate (112) threads, and torque to
75 to 85
in-lb (8.5 to 9.6 N-m) at 100 rpm maxi-
mum. Do not over-torque. These parts must be
assembled correctly.
CAUTION
Do not over-torque the fluid side diaphragm plates
(112). Doing so will damage the hex heads.
4. Install the o-rings (109*) in the manifolds (102).
Position the manifolds (102) as desired and install
on
one of the covers (101) with the screws (104)
and nuts (105). Torque to 20 to 25 in-lb (2.3 to 2.8
N-m). See Fig. 22.
5. Place the pump housing (1) on this cover, oriented
as shown in Fig. 22. Then place the other cover on
the housing and secure to the manifolds with the
screws (104) and nuts (105). Torque to 20 to 25
in-lb (2.3 to 2.8 N-m).
6. Install the clamps (113) in the reverse order of step
2 under Disassembly on page 23. The clamp
bolts should be on the air valve side of the hous-
ing, and pointing down toward the bottom of the
pump. Install the grounding strip (107) on the bolts.
Apply thread lubricant to the bolts. Torque the
clamp nuts (114) to 75 to 85 in-lb (8.5 to 9.6 N-m).
See Fig. 22.
Fig. 21
0821
1
1
112
108
29
}
404*
401*
1
4
2
Grease.
Apply medium-strength (blue) Loctite
R
or equivalent to threads, and torque to
75 to 85 in-lb (8.5 to 9.6 N-m) at 100
rpm maximum.
5
The words “AIR SIDE” on diaphragm (401,
404) must face into the pump housing (1).
Flat side of plates (108)
must face center of pump.
Used only on models with
PTFE diaphragms.
Holes face out of housing (1).
7
6
2
4
5
5
6
7
31
}
30
}