Graco 25C528 Instructions - Parts Manual page 22

Maintenance
5. Turn the large gear (10) counter-clockwise to
remove it from the agitator shaft. Lift the pinion
(3) and gear assembly (16) out of the lower
housing.
6. Turn the 50 mm nut (26) counter-clockwise to
remove it from the agitator shaft (6).
Cleaning Cleaning and Cleaning and and Servicing Servicing Servicing
1. Clean any foreign material off of the outside of
the upper housing (8) and the lower housing (13).
Note
Do not lose the two small thrust balls (4).
One is in the upper housing (8), and one
is in the lower housing (13).
2. Inspect the parts for any wear. If any of the parts
are worn or damaged, replace them. The Bearing
Replacement Kit contains replacement bearings
and seals (items 2, 7, 9, 12, 14, and 15).
Reassembling Reassembling Reassembling
Note
See Models 26B630, 26B631, 238250, page
33 for proper bearing and seal placement
and orientation.
1. Reposition the agitator shaft (6) through the
lower housing (13).
To prevent damage to the bearings and seals,
avoid scraping them against the threaded
agitator shaft while you are lowering the lower
housing in place.
22
NOTICE
NOTICE NOTICE
2. Thread the 50 mm nut (26) onto the agitator shaft
by turning it clockwise, and tighten it hand tight.
3. Make sure the small thrust balls (4) are in place.
4. Reposition the pinion/gear assembly (3, 16) in
the lower housing, thread the large gear (10)
onto the agitator shaft, and tighten the large gear
hand tight.
5. Carefully lowering it straight down, reposition the
upper housing (8) on the lower housing (13).
6. Replace the two short bolts (11) and the two long
bolts (19) that hold the upper housing (8) and the
lower housing (13) together, and torque the bolts
to 75 in-lb (8.5 N•m).
7. Reposition the agitator onto the drum by
repeating the instructions for your agitator from
step 3 in reverse order. For
without an an elevator, elevator, torque the three hex head
without without an elevator,
screws (25) to 75 in-lb (8.5 N•m) when installing.
8. If your agitator has a siphon kit, reinstall it
by performing the reverse of steps 2–4 in
Cleaning an Agitator with a Siphon Kit, page
Additional Agitator Agitator Service Service
Additional Additional Agitator Service
If the unit requires more than the installation of
a bearing replacement kit, it may be advisable to
send the unit to a Graco distributor for repair or
replacement.
For agitators For agitators with agitators with and with and and
21.
3A4792G