Safety System; Park Brake; V-Belts - Husqvarna MZ 48 Operator's Manual

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 engaged.
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.
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 released 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.

Park Brake

Visually check that no damage is found on the
lever, links, or switch belonging to the park brake.
Perform a standstill test and check that there is
sufficient braking. For park brake adjustments,
contact the Husqvarna service workshop.
WARNING! Faulty adjustment will result
in reduced braking and can cause an accident.
Tire Pressures
All tires must be at 103 kPa (1 bar).
IMPORTANT INFORMATION DO NOT add
a tire liner or foam fill material to the tires.
Excessive loads created by foam filled tires will
cause premature failures.
Only use tires specified by Husqvarna.
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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
1. Park on a level surface and apply the parking
brake.
2. Lower the deck to the lowest cutting position.
3. Remove both belt shields.
4. Remove the debris that has accumulated
around the cutter housings and the deck
surface.
5. Loosen the nut securing the belt guide.
6. Push inward on the idler arm to release the
tension on the belt.
7. Slip the belt over the top of the cutter housing
pulleys and remove the belt from the deck.
Deck Belt Installation
NOTE: For ease in installing the deck belt, refer to
the routing decal on the top of the deck.
1. Wrap the deck belt around the electric clutch
pulley located on the engine shaft.
2. Route the belt forward and up onto the deck.
3. Place the belt around the spring loaded idler
pulley.
4. Wrap the belt around the stationary idler
pulley and around the mandrel housings.
5. Push inward on the idler arm and carefully
route the belt over the stationary idler pulley.
Once the belt is properly routed, slowly
release the idler arm to tension the belt.
6. Make sure the belt routing matches the deck
decal and that the belt does not have any
twists.
7. Tighten the belt guide and replace the belt
shields on both mandrel housings. The belt
guide should be perpendicular to the belt
when installation is complete.