Change Pto Belts - Husqvarna P 520D With cabin Operator's Manual

Change PTO belts

WARNING! Protect your hands with gloves.
!
There is a risk of crush injuries when
working with the belt.
Always replace the belts in pairs.
1 Prevent the engine from starting by removing the ignition
key before making any adjustments or performing
maintenance.
2 Fold down driver's seat.
3 Remove the cover plate of the hydraulic pump drive shaft.
4 Unscrew the bolts (1) of the coupling that connects the
drive shaft and the hydraulic pump and remove the spacer
ring (2) from the coupling. The drive shaft must be locked
with some kind of tool, for example. a big U-spanner or
screwdriver.
5 Loosen the lock nut (3) and the lower screw (4) until it is
completely free from the belt tensioner.
6
5
6 Remove rear bearing spacer screws (5) and remove the
spacer (6).
7 Cut/pull off the old belts.
8 Pull the new belts through the gap between the spacer
ring and the hydraulic pump.
9 Feed the lower part of the strap between the bearing
bridge and the bracket.
MAINTENANCE AND SERVICE
10 Pull the belt onto the pump belt pulley first and then onto
the lower belt pulley. Repeat the procedure with the
second belt.
11 Fit the spacer (6) to the bearing bridge and screw the
bearing bridge tight with the associated screws (5).
Torque 47 Nm.
6
5
12 Replace the spacer ring (2) and screw the hydraulic pump
securely to the drive shaft. Torque for the screws (1) is 47
Nm.
13 Fit the belt tensioner screw with spring and sleeve.
Tighten screw (4) until the sleeve bottoms against the
frame bracket. Tighten lock nut (3) whilst holding screw (4)
firmly.
14 Check belt tension after the first 25 hours after belt
change.
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English