Husqvarna K970 III Workshop Manual page 59

4. Remove the pulley.
5. Remove the 4 screws, seals and the screen rings.
6.14.2 Function friction retarder
The friction retarder has a number of loosely assembled
parts that are held together by the spring. Always
replace the complete unit, as shown in the illustration.
The brake drum is attached to the bearing housing with
3 screws. The guide plate is attached to the belt pulley
with 4 screws.
The friction retarder slowly stops the cutting blade after
operation. It operates when below work speed. The
brake shoes (D) are pressed against the brake drum (C)
by the spring (A). These units are held in position by the
guide plate (B). When the speed goes above work
1444 - 001 - 02.04.2020
speed, the brake shoes are pushed out from the brake
drum. The retarder does not operate.
B
A
6.14.3 To disassemble the friction retarder
1. Remove the 4 screws.
2. Release the retarder unit from the belt pulley .
6.14.4 To clean the friction retarder
CAUTION: The retarder must not be lubricated.
• If it is necessary, clean off dust with compressed air.
C
D
Repair and servicing - 59