Tire Pressures - Husqvarna W548 Operator's Manual

MAINTENANCE
Handle Height Control
1. Remove the two pins from the bottom
brackets of the drive control rods and let the
rods hang loose.
2. Remove the adjustment knobs from the two
sides of the mower.
3. Rotate the handle assembly up or down to the
desired and install the adjustment knobs.
4. Insert the drive control rods into the related
holes in the bottom brackets.
5. Install the pins on the drive control rods.

Tire Pressures

The tires must be at 10-12 psi / 169-83 kPa / 1
bar.
IMPORTANT DO NOT add a tire liner or
foam fill material to the tires. Excessive loads
caused by foam filled tires will cause premature
failures.
Only use O.E.M. specified tires.
Warning! Before performing service or
adjustment:
• Engage the park brake.
• Disengage the blade switch.
• Turn the ignition switch to OFF position and
remove the key.
• Make sure the blades and all moving parts
have completely stopped.
Electrical Relays and Fuse
The mower is equipped with four relays located
under the control panel area.
1. Clutch Relay
2. Ignition Kill Relay
3. Start Relay
4. Safety Relay
5. Fuse 20 Amp
The relays are easily changed by removing
the faulty relay from its socket and installing a
new one. See the Parts Manual for ordering
replacements.
Park Brake
The park brake must contact the rear wheel to
prevent the mower from moving when engaged.
Adjustments
1. Chock the wheels and release the park brake.
2. Remove the pin from the inner side of the park
brake trunnion.
3. Remove the trunnion from the brake arm.
4. Rotate the trunnion counter clockwise on the
park brake rod to increase braking pressure.
IMPORTANT The length of brake rod threads
visible below the trunnion must be a minimum
of 1-1/4" (32 mm) and a maximum of 1-5/16"
(34 mm).
5. Mount the trunnion in brake arm and secure
with the pin.
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