Husqvarna P 525D 用户手册

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页码 56
English
 – 31
Maintenance
Adjustment of PTO belts
1
Tighten screw (4) until the sleeve bottoms against the 
frame bracket. Tighten lock nut (3) whilst holding screw (4) 
firmly.
Change PTO belts
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
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.
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.
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.
!
WARNING! Protect your hands with gloves 
There is a risk of crush injuries when 
working with the belt.
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6