Rear Driving Mechanism - Service Information; Rear Driving Mechanism - Specifications; Rear Driving Mechanism - Torque Values - Honda TRX500FM Service Manual

SERVICE INFORMATION
GENERAL
REAR DRIVING MECHANISM
Perform the gear contact pattern and backlash inspection whenever you replace the bearings, gears or gear case. The
extension lines from the gear engagement surfaces should intersect at one point.
Protect the gear case with a shop towel or soft jaws while holding it in vise. Do not clamp it too light as it could damage the gear
case.
When using the lock nul wrench, use a deflecting beam
type
torque wrench 20 inches long. The lock nut w rench increases the
torque wrench's leverage, so the torque wrench reading will be less than the torque actually applied to the nut. The specification
given is the aclualtorque applied to the lock nul, not the reading on the torque wrench . Do not overtighten the lock nut. The
specification later in the text gives both actual and indicated.
Replace the ring and pinion gears as a set.
SPECIFICATIONS
Axle runout
r
Rear final drive
I
ITEM
Oil capacity After draining
disassembly
Recommended oil
STANDARD
75 cm (2.5 US oz, 2.6 Imp oz)
100 cm
3
(3.4 US oz, 3 .5 Imp oz)
Honda shaft drive oil or equivalent
• _ _ _ ==:::;j hi2YPOid gear oil, SAE
II 80
0 .05 - 0-:-25 (0.002 - 0 .010)
Backlash difference
- - 0.4 (0.02)
0.2 (0 .01 L )
- - - i
Ring gear-Io-stop pin clearance
TORQUE VALUES
ITEM Q'TY
Rear final gear case cover boll
2
6
,
n bearing lock nut
1
Rear final gear pinio
Right axle housing mo unling nut 4
Rear final gear case mounting nut 8
Shock absorber low er mounting nut 1
Rear final gear case skid plate bolt
3
Rear brake panel mounting nut
4
Rear wheel hub nul
2
Trailer hitch nut
2
0.3 - 0.6 (0.01 - 0.02)
THREAD -,-
TORQUE
DIA. (mm)
N'm (kgf·m. IbUt)
10 47 (4.8,
35)
8 25 (2 .5.
18)
64
98 (10.0,
72)
10
52 (5.3. 38)
10 47 (4 .8,
35)
10 39 (4.0. 29)
I
REMARKS
Appl
me
1
Y locking agent to
hreads.
Lock nut: replace With
an
ew
one. Stake
nut replace with
wane.
Lock
a no
Lock nut: replace with
wane.
a no
Lock nut: replace wilh
wane.
a no
8
32 (3 .3. 24) ALOC bolt: replace
with a new one.
nul: replace with
a new one.
20
10
+-
137(14.0. 101) Castle nut: lighten to
34 (3.5. 25)
the specified torque
and further tighten
until its grooves align
with the cotter pin
hole .
For tightening
procedure: See page
20·24
Lock nut replace With
a new one.
20·3