Honda 2005-2008 RX500 FA Service Manual page 366

'61HN252' by American Honda Motor Co. - Page 366 of 540
[2005-2008] [TRX500 FA/FGA]
FRONT DRIVING MECHANISM
17-18
1 of 1
Turn the 8 mm nut and check the pinion gear turns
smoothly and quietly without binding.
If the pinion gear does not turn smoothly or quietly,
the pinion gear, ring gear or bearing may be dam-
aged or faulty. They must be checked after disas-
sembly; replace them if necessary.
BACKLASH INSPECTION
Hold the pinion gear with the 8 mm nut.
Set the differential case into a jig or vise with soft
jaws.
Install the differential inspection tool into the right
side of the differential.
TOOL:
07KMK-HC50101 or
Differential inspection tool
07KMK-HC5010A
(U.S.A. only)
Remove the oil filler cap and set a horizontal type
dial indicator on the ring gear through the filler
hole.
Turn the ring gear back and forth to measure the
backlash.
STANDARD: 0.05 0.25 mm (0.002 0.010 in)
SERVICE LIMIT: 0.4 mm (0.02 in)
Remove the dial indicator. Turn the ring gear 120°
and measure backlash. Repeat this procedure once
more. Compare the difference of the three measure-
ments.
SERVICE LIMIT: 0.2 mm (0.01 in)
If the difference in measurements exceeds the ser-
vice limit, it indicates that the bearing is not
installed squarely, or the case is deformed. Inspect
the bearings and case.
If the backlash is excessive, replace the ring gear left
side shim with a thinner one.
If the backlash is too small, replace the ring gear left
side shim with a thicker one.
The backlash is changed by about 0.06 mm (0.002
in) when the thickness of the shim is changed by
0.10 mm (0.004 in).
· Twenty-three different thickness shims are avail-
able from the thinnest (0.50 mm) shim to the
thickest (1.60 mm) shim in increments of 0.05
mm.
Ring gear shims:
A: (thinnest): 0.50 mm (0.020 in)
K: (standard): 1.00 mm (0.039 in)
W: (thickest): 1.60 mm (0.063 in)
Change the right side shim an equal thickness and
opposite amount of what the left side shim was
changed; If the left shim was replaced with a 0.10
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
LEFT SHIM
RIGHT SHIM
3/9/2008 11:14 PM