Safety System; Cutting Blades; V-Belts - Husqvarna MZ61 Manual Del Operador

MAINTENANCE

Safety System

The machine is equipped with a safety system
that prevents starting or driving under the
following conditions.
The engine can only be started when:
• the mower deck is disengaged.
• the steering controls are in the outer, locked
neutral position.
• the park brake is on.
Make daily inspections to ensure that the safety
system works by attempting to start the engine
when one of the conditions is not met. Change
the conditions and try again.
If the machine starts when one of these
conditions is not met, turn the machine off and
repair the safety system before using the machine
again.
Make sure the engine stops when the park brake
is not engaged and the operator leaves the
seated position.
Check that the engine stops if the mower blades
are engaged and the driver temporarily moves off
the driver's seat.
IMPORTANT INFORMATION To be able to
drive, the driver must sit in the seat and release
the park brake before the steering controls can
be moved into the neutral position, otherwise
the engine will stop.

Cutting Blades

CAUTION! Blades are sharp. Protect
your hands with gloves and/or wrap blades with
a heavy cloth when handling.
The sharpening of blades must be
carried out by an authorized service
workshop.
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For the best mowing effect, it is important that the
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.
Blade Replacement
1. Remove blade bolt by turning it counter
clockwise.
2. Install new or re-sharpened blade with
stamped GRASS SIDE facing towards
ground/grass (down) or THIS SIDE UP facing
deck and cutter housing.
3. Install and tighten blade bolt securely.
4. Torque blade bolt to 45-55 lb-pie (122 Nm).
IMPORTANT INFORMATION The special
blade bolt is heat treated. Replace it with a
Husqvarna bolt if required. Do not a use lower
grade hardware than specified.

V-belts

Check every 100 hours of operation. Check for
severe cracking and large nicks. The belts are not
adjustable. Replace the belts if they begin to slip
from wear.
NOTE: The belt will show some small cracks in
normal operation.
Deck Belt
Deck Belt Removal
Park on a level surface. Engage park brake.
Lower the deck into the lowest cutting position.
1. Remove foot plate and belt shields.
2. Remove dirt or grass that may have
accumulated around the cutter housings and
entire deck surface.
3. Using a ratchet or a breaker bar and 9/16"
socket in the square opening in the idler arm,
shift the arm counter clockwise to relieve the
tension on the belt.