Graco 218556, Series C, Инструкция-перечень запасных частей

Страница: 12 / 26

12
307679
Displacement Pump Service (Model 218554)
Reassembly (See Fig. 2)
1. Install the two o–rings (208* and 209*) on the
pump housing (210). Screw the pump housing into
the pump outlet housing (215) and tighten secure-
ly.
2. Apply sealant to the threads of the inner displace-
ment cylinder (206) and screw it onto the pump
outlet housing (215). Do the same with the outer
displacement cylinder (207).
3. Screw the bung adapter (216) onto the outlet
housing (215) with a strap wrench.
4. Install the seal (219*) on the displacement piston
(217). See Fig 2. Install the backup washer (220)
with the groove facing up toward the seal. Apply
medium strength adhesive to the top threads of
the lower piston rod (205) and screw the rod into
the displacement piston (217). Torque to 20–25
ft-lb (27–34 N.m).
5. Install the seal (204*) on the fluid piston (202).
Install the backup washer (223) with the groove
facing down toward the seal. Apply sealant to the
threads of the piston (202) and piston valve hous-
ing (221). Place the ball (222
n
) on the piston seat,
and screw the piston into the housing. Torque to
45–50 ft-lb (61–68 N.m).
6. Carefully insert the upper piston rod (211) into the
bottom of the pump and push it all the way up until
its top flats protrude from the pump housing (210).
See Fig 2. Install the o–ring (208*) on the pump
housing (210). Slide the packing (214*) onto the
upper piston rod (211), with the lips of the packing
facing up. Screw the packing retainer (213) onto
the pump housing (210) and tighten securely.
7. Apply adhesive to the top threads of the upper
piston rod (211). Using wrenches on the flats,
screw the connecting rod (212) onto the upper
piston rod.
8. Install the spring (201b) and ball (201a) on the
relief valve housing (201d), and screw the valve
into the intake valve housing (201c). Place the ball
(201f
n
) in the intake housing (201c), and install
the stop pin (201e). Apply sealant to the threads of
the intake valve housing (201c) and screw it into
the outer displacement cylinder (207).
9. Lay the pump on its side and reconnect the ball of
the connecting rod (212) with the socket in the air
motor piston rod. Tighten the air motor connecting
ring.
10. Reinstall the pump on its mounting. If the ground-
ing wire was disconnected during service, recon-
nect it before operating the pump.