Graco 15H886 Instructions Manual page 4

Gear reducer replacement kit
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9. See F
. 3. Rotate the crank arm (4) to allow it to be
IG
removed from the output shaft (OS).
10. Pull the crank arm/connecting rod/slider piston
assembly (CR) up and out of the cylinder.
4
OS
F
. 3. Rotate Crank Arm
IG
11. Turn on power and jog the motor to bring the motor
side lower to the bottom of its stroke.
12. Shut off electrical power to the unit. Repeat the pro-
cedure for the motor side lower.
13. Disconnect the fluid inlet and outlet lines from the
pump and plug the ends to prevent fluid contamina-
tion.
14. See F
. 4 for NEMA 184 TC Frame electric motors.
IG
See F
. 5 for IEC 112M/B5 Frame electric motors.
IG
While one person supports the motor (19), remove
the screws (37). Pull the motor away from the gear
reducer.
15. See F
. 6. Remove the circuit board cover (34) and
IG
gasket (33).
16. See F
. 9. If present, disconnect the transducer
IG
(25a) from J1 on the circuit board (25c).
17. If present, disconnect the IS circuit field wire from J2
and J3 on the circuit board.
18. If present, remove the circuit board (25c) and TDC
sensor (25b). Retain for reassembly.
19. See F
. 6. Unscrew the strain relief (35) from the
IG
gear housing and pull it and the transducer conduit
out of the housing. Do not disconnect the transducer
from the pump outlet manifold (17).
4
20. Unscrew the locknuts (15) from the tie rods (3).
Remove the entire fluid section. Unscrew the tie
rods (3) from the gear housing.
21. Remove the setscrew (31). Unscrew the slider cylin-
der (2) from the gear reducer.
19
CR
ti9225a
(counter-clockwise as viewed from fan end)
F
. 4. NEMA 184 TC Frame Electric Motors
IG
19
F
. 5. IEC 112M/B5 Frame Electric Motors
IG
20
31
Motor Rotation
31
60
59
Motor Rotation
(counter-clockwise as viewed from fan end)
Kit Installation
1
37
31
28
ti8726a
1
37
20
28
ti9007a
311615A

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