Polaris 340 CLASSIC 2006 User Manual

7.20
CLUTCHING
DRIVEN CLUTCH
DRIVEN CLUTCH OVERVIEW
The driven, or secondary, clutch is a torque (load) sensing
device. The driven clutch performs several important roles in
the drive system. First, the driven clutch must provide enough
side force on the drive belt to transmit the engine torque to the
ground while minimizing both belt slippage and excessive belt
wear. Second, the driven clutch must act as a load feedback
device (drive shaft torque) to the drive clutch and backshift to
compensate.
The vehicle load from the track is transmitted through the
snowmobile's gearing to the helix ramps via the drive shaft
and jackshaft. The helix ramps function like a torque
multipliers and are in constant contact with the moveable
sheave rollers or buttons.
The driven clutch components, along with the final drive
gearing and vehicle load, combine to generate their own shift
force which opposes the shift force generated by the drive
clutch. This shift force always wants to close the moveable
sheave.
The driven clutch will open, or upshift, when the shift force
generated by the drive clutch is greater than the shift force
generated by the driven clutch. The driven clutch will close, or
backshift, whenever the driven clutch shift force is greater
than the shift force generated by the drive clutch.
DRIVEN CLUTCH TYPES
Polaris utilizes two types of driven clutches, the P-85 driven
clutch and the Team driven clutch.
NOTE: Replacement driven clutches do not come
with a spring or the helix (ramp).
NOTE: To service the Team driven clutches, use the
clutch compression tool extensions with the clutch
compression tool. Tool part numbers can be found
on Table 7-1 on page 7.3.
DRIVEN CLUTCH REMOVAL
1. Remove the belt See “DRIVE BELT” on page 7.4.
2. Apply and lock the parking brake.
3. Remove the driven clutch bolt and washers (A).
NOTE: Keep track of the washers and how they are
placed on the bolt.
4. Slide the driven clutch off the jackshaft.
5. Inspect the keyway if equipped and replace the key if any
damage is found.
DRIVEN CLUTCH INSTALLATION
1. Install the driven clutch bolt with the same amount of
washers (B) at removal.
2. Torque the bolt to 17 ft-lb (23Nm).
3. Check for correct belt deflection see page See “BELT
DEFLECTION” on page 3.17.
A

Polaris 340 CLASSIC 2006 Specifications

General

Brand	Polaris
Model	340 CLASSIC 2006
Category	Offroad Vehicle
Language	English