BRP BOMBARDIER DS250 2006 Shop Manual page 218

The deflection of the chain should be 20 mm ±
5 mm (13/16 in ± 3/16 in).
Tighten the chain tensioner lock bolts to 62 N•m
(46 lbf•ft) and caliper support bolt to 12 N•m
(106 lbf•in).
CAUTION: Never operate this vehicle with the
drive chain too loose or too tight as severe
damage to the drive components can occur.
When the adjustment is done, repeat the above
procedure to check the deflection several times
at different spots on the chain.
Inspection
Check the deflection of drive chain and adjust if
necessary. Replace drive chain when adjustment
can not be reached with the chain tensioner.
Check for damage or missing O-ring or rollers.
Cleaning and Lubrication
CAUTION: Never wash the chain with a high
pressure washer or gasoline. Damage to the
O-ring will result, causing premature wear and
drive chain failure.
Clean the side surfaces of the chain with a dry
cloth.
NOTE: Do not brush chain.
Lubricate only with an approved O-ring chain lubri-
cant. Other commercial chain lubricants may con-
tain solvent which could damage the O-rings.
Removal
Lift the rear of vehicle and install jack stands under
frame to support the rear of vehicle off the ground.
Remove drive chain protector.
vmr2006-084
Section 08 REAR SUSPENSION AND AXLE
Subsection 01 (REAR SUSPENSION AND AXLE)
vmr2006-084-005_a
Loosen drive chain. See procedure in ADJUST-
MENT above.
Turn wheel to locate the master link.
vmr2006-084-006_a
1. Locking clip
2. Removable link
Remove locking clip, master link and O-rings.
Remove drive chain.
Installation
NOTE: When changing drive chain, always replace
sprockets at the same time to prevent rapid chain
and sprocket wear.
The installation is the reverse of the removal pro-
cedure. However, pay attention to the following.
Use the following illustration to position the lock-
ing clip correctly.
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