Graco Dura-Flo 1100, Инструкция и перечень запасных частей

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Service
DISPLACEMENT PUMP SERVICE
Disassembly
When disassembling the pump, lay out all the removed
parts in sequence, to ease reassembly.
NOTE: Repair Kit 237166 is available. For the best
results, use all the new parts in the kit. Kit parts are
marked with an asterisk, for example (3*). Kits to
convert the pump to different packing materials are
also available. Refer to page 20.
1. Place the pump lengthwise in a large vise, with the
jaws on the outlet housing (9) as shown in Fig. 5.
Using the supplied wrench (104), loosen, but do
not remove, the packing nut (2).
2. Using a pipe wrench, unscrew the intake valve
(17) from the intake housing (16). Be careful to
catch the intake ball (15) as you remove the intake
valve, so that it doesn’t fall and suffer damage.
Remove the o-ring (28) from the intake valve.
Inspect the ball and the seat (D) of the intake valve
for wear or damage. See Fig. 5.
3. Stand the pump upright in the vise. Remove the
six long cap screws (29), using a 15/16 in. (or 23
mm) socket wrench. See Fig. 8.
4. Lift the outlet housing (9) straight up off the pump.
Be careful not to scratch the displacement rod (1)
while removing the housing. See Fig. 6.
5. Lift the cylinder (11), displacement rod (1), and
piston assembly off the intake housing (16). Re-
move the ball guide (27) from the intake housing,
and inspect the guide surfaces. See Fig. 6.
6. Using a rubber mallet, drive the displacement rod
(1) and piston assembly out the bottom of the
cylinder (11) until the piston comes free. Pull the
rod and piston from the cylinder, being careful not
to scratch the parts.
CAUTION
To reduce the possibility of costly damage to the rod
(1) and cylinder (11), always use a rubber mallet to
drive the rod out of the cylinder. Never use a ham-
mer to drive the rod.
7. Shine a light into the cylinder (11) to inspect the
inner surface for scoring or wear. Remove the
o-rings (10) from the cylinder.
8. Place the flats of the piston seat housing (14) in a
vise, as shown in Fig. 7. Using an adjustable
wrench, unscrew the piston ball housing (12) from
the piston seat housing. Be careful to catch the
piston ball (13) as you separate the piston seat
housing and ball housing, so that it doesn’t fall and
suffer damage.
03986
Fig. 5
1
9
11
16
17
1
Torque to 522–542 N.m (385–400 ft–lb).
1
28*
15*
D
2
2
Lubricate.
2
2