Husqvarna M-ZT 52 用户手册

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页码 44
Pump Belt
The belts are not adjustable. Replace belts if they begin to slip 
from wear.
Replacing Pump Belt
Park the mower on a level surface. Engage the park brake.
Belt Removal
From the top side of the deck:
1.  Remove the deck belt (see Deck Belt Removal in this 
section of the manual).
2.  Tilt seat forward to access fan covers. Remove both fan 
covers.
From the underside of the mower:
3.  Remove clutch stop to access the belt.
4.  With a ½" breaker bar and using the square opening in the 
pump idler arm, shift the arm to create slack in the belt.
5.  With the idler arm in the slack position, slip a screwdriver, 
clevis pin or similar into the 
3
/
8
" hole in the plate that sits 
between the two fan covers. This will keep the idler in the 
extended position and allow removal of the breaker bar.
6.  Remove belt from the engine and pump pulleys over the 
top of the fans.
Belt Installation
1.  If the pump is not locked in the extended position, repeat 
Steps 4 and 5 from the above instructions.
2.  Slip the belt over the fans and route it between the idler 
pulleys.
3.  Place the belt over the right and left idler pulleys.
4.  Place the belt on the engine pulley.
5.  Use the breaker bar to hold the tension off the belt while 
removing the implement used as a brace in the plate.
6.  Replace and secure clutch stop.
7.  Reinstall the fan shields.
8.  Reinstall the deck belt. (See Deck Belt Installation in this 
section of the manual).
IMPORTANT INFORMATION  Special blade bolt is heat 
treated.
Replace with a Husqvarna bolt if required.
Do not use lower grade hardware than specified.
Cutting Blades
For the best mowing results, it is important that blades are well 
sharpened and not damaged.
Replace blades that have been bent or cracked when hitting 
obstacles.
Let the service workshop decide whether a blade with large 
nicks can be repaired/ground or must be replaced. Balance 
the blades after sharpening.
Check the blade mounts.
  CAUTION!  Blades are sharp. Protect 
your hands with gloves and/or wrap blades with 
a heavy cloth when handling.
The sharpening of blades should be carried out 
by an authorized service workshop.
Blade replacement
1.  Remove blade bolt by turning counter clockwise.
2.  Install new or resharpened blade with stamped GRASS 
SIDE facing towards ground/grass (down) or THIS SIDE 
UP facing deck and cutter housing.
3.  Seat the blade's opening firmly onto the cutter housing.
4.  Tighten blade bolt securely.
5.  Torque blade bolt to 45-55 ft/lbs (60-75 Nm).
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