Graco 25E079, Operation

Page: 24 / 52

Repair
24 3A5379B
Repair
Replace Shaft Bearing
Assembly
1. Stop the pump at the bottom of its stroke. Shut off
and remove power to the driver.
2. Perform the Pressure Relief Procedure , page 14.
3. Disconnect the lower from the driver. See Remove
Driver on page 35.
4. Drain the oil from the driver. See Change the Oil ,
page 16.
5. Reinstall the oil drain plug. Torque to 18-23 ft-lb
(25-30 N•m).
6. Unscrew the shaft bearing assembly (14) from the
driver. See Parts , page 38.
7. Install the new shaft bearing assembly. Torque to
175-200 ft-lb (240-280 N•m).
8. Fill with oil. See Change the Oil , page 16.
9. Reconnect the lower to the driver.
10. Turn the power ON and resume operation.
Replace Fan Fuses
1. Perform the Pressure Relief Procedure , page 14.
2. Disconnect the unit from the power source.
3. Remove two screws (53) and remove the junction
box cover (BA) from the driver to gain access to the
disconnect block (BD). Gently pull out the fuse hold
-
ers.
4. Unscrew the fuse holder, remove the old fuse, and
replace with the new fuse (Graco part number
116682) (5 mm x 20 mm, 500 mA, 250V, Slow
Blow). Reconnect the fuse holder and tighten.
5. Repeat step 4 with the second fuse.
6. Tuck the wires back into the junction box (BC)
around the disconnect block (BD) and reinstall the
junction box with two screws and washers.
To prevent skin injection and splashing, never open
an applicator fitting while there is pressure in the fluid
line. Perform the
Pressure Relief Procedure , page
14, before performing any repair procedure.
All electrical wiring must be done by a qualified elec
-
trician and comply with all local codes and regula
-
tions.
F
IG
. 19: Fuse Location
NOTICE
Make sure all wires are routed correctly before instal
-
lation. If wires get pinched when the screws are tight
-
ened, damage will occur.
WLD
53
BA
BD