Repair; Replace Pump Components; Replace Air Motor; Replace Pump Lower - Graco 262927 Instructions Manual

Repair

Repair Repair
To prevent skin injection and splashing, never
open a camlock hose or applicator fitting while
there is pressure in the fluid line. Perform
Pressure Relief Procedure, page
performing any repair procedure.
Replace Pump Pump Components Components
Replace Replace Pump Components
To replace any pump components
(excluding the air motor), perform the
Disassemble and Clean the Pump (Daily), page
procedure.
Replace Air Air Motor Motor
Replace Replace Air Motor
1. Perform Pressure Relief Procedure, page
2. Note location of small air tube connections on air
motor then remove air tubes.
3. Disconnect pump rod (see the following figure):
a. Push piston rod protective spring up and
away from coupling assembly (BF1-BF3).
b. Remove clip (BF1), and slide coupling cover
(BF2) up to remove coupling (BF3).
BF1
Figure 40
4. Loosen three tie rod nuts (44), then loosen
and remove tie rods (42) from air motor. See
Parts, page 38.
5. Remove air motor.
6. Align air motor with tie rods (42) then tighten tie
rods to air motor.
332612C
7. Tighten tie rod nuts (44).
8. Connect pump rod. See figure shown previously
9. Connect small air tubes to air motor.
Replace Pump
Replace Replace
15, before
Perform this procedure to replace the entire
pump lower with a new or different pump lower.
To repair or replace any internal components
in the pump (excluding the air motor), perform
Disassemble and Clean the Pump (Daily), page
1. Perform
30,
2. Disconnect pump lower from hopper.
3. Disconnect material hose from pump lower outlet.
4. Disconnect pump rod (see the following figure):
15.
5. Loosen three tie rod nuts (44), then loosen
6. Remove pump lower.
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7. Align new pump lower with tie rods (42) then
8. Tighten tie rod nuts (44).
9. Connect pump rod. See figure shown previously
10. Connect pump lower to hopper.
in this section.
Pump Lower Lower
Pump Lower
Pressure Relief Procedure, page
a. Push piston rod protective spring up and
away from coupling assembly (BF1-BF3).
b. Remove clip (BF1), and slide coupling cover
(BF2) up to remove coupling (BF3).
BF1
Figure 41
and remove tie rods (42) from air motor. See
Parts, page 38.
tighten tie rods to air motor.
in this section.
Repair
30.
15.
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37