MCi Crusader II 1989 Maintenance Manual page 15

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MC-9 MAINTENANCE MANUAL
.>IZING NEW BUSHINGS
There are several methods of sizing the bushings but the
only method which will give accurate size and alignment of the
bore is reaming. Honing and burnishing do not provide good
bushing bore alignment Easy steer bushings are made of too
resilient a material for them to be sized with a burnishing ball or
bar.
The recommended procedure for reaming the bushings is
as follows:
1. Position . the knuckle in a vise with soft metal shims to
protect the knuckle. It is preferable to have the king hole verti-
cal.
2. Gently slide the reamer pilot through the upper bushing
until the reamer cutters begin to engage the upper bushing. See
figure 1-17.
(Push Down Lightly)
REAM UPPER
BUSHING FIRST
Figure 1-17. Size Upper Bushing.
3. Begin rotating the reamer and applying a light downward
pressure with your hand at the same time. Do not force the
reamer by applying too much downward force. The reamer can
be rotated
at
any speed but should be done smoothly.
4. After the reamer sizes most of the upper bushing, support
the reamer so that it does not drop to the bottom bushing as it
completes the cut
5. After the upper bushi11g·has been sized. gently slide the
reamer through until it engages the bottom bushing. See figure
1-18. Repeat steps 3 and
4
for the bottom bushing.
(Push Down Lightly)
REAM LOWER
BUSHING SECOND
Figure 1-18. Sizing Lower Bushing.
6. Slide the reamer out through the bottom. If the reamer
must be pulled back up through the bushing, do so only while
rotating the reamer in reverse. Any other way will damage the
bushings.
7. Clear bushing debris from bores before installing seals.
GREASE SEAL INSTALLATION
After the reaming operation is completed. install the grease
seals. See the procedure as described earlier in this section.