MCi Crusader II 1989 Maintenance Manual page 168

Date 1-1-89
Page . ___
4_-3_s _ _
MC-9 MAINTENANCE MANUAL
5. Thoroughly lubricate 1he two new 0-rings and install
tnem in their respective groo~es in the purge plate (figure 4-46}.
6. Set the desiccant sealing plate aside for reinstallation on
the desiccant cartridge.
REPLACING DESICCANT CARTRIDGE
Prior to installing the new replacement cartridge in the air
dryer. the following steps must be followed.
1 Carefully remove the lock nut from the cartridge bolt using
an 11116" open end or box wrench.
CAUTION: Care must be taken not to allow
the cartridge bolt to slip out the cartridge
when the lock nut is removed. Lou of
desiccant material will occur should this
happen.
2. Install the previously rebuilt desiccant seating plate on the
cartridge bolt so that the ball check retaining clip remains
visible.
3. While holding the cartridge bolt. reinstall the lock nut on
the cartridge bolt.
CAUTION: Before tightening the lock nut
make certain that the shoulder (the un-
threaded portion) of the cartridge bolt
extends slightly above the perforated
desiccant plate.
4. By tightening. the lock nut. draw the desiccant sealing
plate down in to the desiccant cartridge until the shoulder of the
desiccant sealing plate 1s against the cartridge shell.
Figure 4-46. Installing 0-Rings On End Cover.
REBUILDING THE DESICCANT CARTRIDGE
The desiccant cartridges are identified by the Bendix trade-
1ark BW stamped in the hex head of the cartridge bolt, and by
the letters and number AD-2 displayed on the bottom face of the
oil filter.
1.
Refer to figure 4-4 7. Carefully remove the lock nut on top
of the desiccant sealing plate. (The plate is spring loaded;
however, the spring load is completely relieved when the nut
is
removed.}
Figure 4-47. Desiccant Cartridge.
2. Remove the desiccant sealing plate and rebuild it as out-
lined under Removing and Rebuilding the Desiccant Sealing
Plate.
3. Remove and retain the spring, spring seat. bolt and car-
tridge shell. Discard the oil separator filter. the two perforated
plates and desiccant material.
4. Insert one of the perforated plates into the cartridge, felt
cloth up. and tap it firmly to the bottom. (Felt always faces
desiccant material.} See figure 4-48.
Figure 4-48. Inserting Felt Plate.