Edition
2016
Workshop Manual
PARK 120 - PARK 220
Chapter
Page
70
C
E
D
2. Remove the following:
• Belt guide (C) with screws (13 mm key)
• Shaft screw (D) with washer and bush (17
mm key)
• Pull up the pulley (E).
F (4x)
G
3. Loosen the four screws (F) for the left bearing
housing a couple of turns.
NOTE: The left bearing housing is lateral
adjustable to perform the timing belt
adjustment.
4. Remove the screw (G) with washer and
the bush at the right shaft and lift the pulley
together with the belt.
8.3.2 Checks
1. Check the torque limiting between gear wheels and blade shaft. See “Synchronising,
blades”
2. Check the two blade shaft bearings as follows:
• Grab the pulley and force it in the radial direction. No radial play shall be felt.
• Grab the knife and force it in the radial direction. No radial play shall be felt.
• Rotate the shaft. No abnormal bearing noise shall be heard.
The bearing housings are not divided in additional spare parts. If bearing failure is
detected, replace the entire bearing housing.
8.3.3 Assembly of belt
Assemble the timing belt in the reverse order.
Correctly synchronised blades must be offset 90° from each other. See “Synchronising,
blades”
.
Before the left bearing housing screws are tightened, the belt shall be adjusted.
Adjust as follows:
