Arctic Cat DVX 300 Wartungshandbuch PDF herunterladen (Seite 105)

102

ATV-0104

Correcting Tooth Contact

NOTE: If tooth contact pattern is comparable to the

correct pattern illustration, no correction is neces-

sary.

If tooth contact pattern is comparable to an incorrect pat-

tern, correct tooth contact according to the following

chart.

After tooth contact is corrected, gear backlash must be

checked.

Checking Backlash

1. Mount a dial indicator through the oil fill plug to

contact a tooth on the ring gear; then “zero” the dial

indicator.

KM936

2. While locking the pinion shaft to prevent it from

turning, rock the ring gear back and forth and record

the measurement. Standard backlash should be 0.05-

0.25 mm (0.002-0.010 in.). Maximum service limit

is 0.4 mm (0.016 in.).

3. Remove the dial indicator and rotate the ring gear

120°; then repeat steps 1-2.

4. Repeat step 3 for a total of three measurements; then

compare the difference between the three. Maximum

allowable difference is 0.2 mm (0.08 in.).

NOTE: If the difference in measurements exceeds

specifications, the bearings are not installed squarely

or the gear case is warped. If backlash is not within

specifications, correct using the following chart.

NOTE: Always change both shims by the same

amount on opposite sides. If left shim is increased,

right shim must be decreased by the same amount.

5. After backlash is corrected, recheck gear tooth con-

tact. Repeat Correcting Tooth Contact and Checking

Backlash until both are within specifications.

6. When tooth contact and backlash are within specifi-

cation, remove the cap screws securing the cover to

the gear case.

7. Clean any oil from the mating surfaces; then apply

an even coat of silicone sealant to the mating sur-

faces and install the gear case covers.

8. Install six 8 mm and two 10 mm cap screws and

while rotating the pinion gear, tighten in a crisscross

pattern to the specified torque (8 mm cap screws to

19 ft-lb, 10 mm cap screws to 36 ft-lb).

REPLACING SWING ARM SEALS

AND BEARINGS

To replace damaged or worn seals and bearings in the

swing arm assembly, use the following procedure.

1. Remove the dust seals from the swing arm pivot;

then using a slide hammer and bearing puller,

remove the pivot bearings.

KM521

2. Drive in new pivot bearings until fully seated; then

install new dust seals.

KM522

Tooth Contact Shim Correction

Contacts at Top Decrease Shim Thickness

Contacts at Root Increase Shim Thickness

Backlash Ring Gear Left Side Ring Gear Right Side

Insufficient Decrease Shim Increase Shim

Excessive Increase Shim Decrease Shim

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 117 118

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