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WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Security of Air Filtration Components - Model MS,
MC, MD, MT
NOTE: The following inspection is only an external
inspection and should be done without “disturbing”
the filtration components.
On a daily basis, visually inspect the external condition
of the complete air cleaner system. The following items
should be inspected:
1. Check the Donaldson Radialseal™ air cleaner
canister for damage. Make sure the cover is in
place and the cover latches are secure - do not run
the engine without the air cleaner cover in place
and secure.
2. Inspect the air intake hose for cracks, nicks, cuts,
etc., and check the hose clamps for tightness.
3. Check to make sure the air flow indicator is in place
and tight.
Security of Air Cleaner System - Model MB
NOTE: The following inspection is only an external
inspection and should be done without “disturbing”
the filtration components.
On a daily basis, visually inspect the external condition
of the air cleaner cover.
Check for damage. Make sure the cover is in place and
the cover latches are secure - do not run the engine
without the air cleaner cover in place and secure.
Battery
Model MS, MB, MC, MD, MT
NOTE: For initial battery service during setup, refer to
Battery Service in the Set-Up Section.
IMPORTANT: Make sure battery is securely mounted
in the frame. A loose battery may cause damage to the
case resulting in acid leakage and severe damage to
the machine. A hazard may be created by damage to
critical working parts and safety systems.
Cleaning the Terminals - All Models
If battery terminals are corroded, remove battery from
the mower. Using a wire brush, remove corrosion with
a solution of one part baking soda and four parts wa-
ter. Rinse with clean water. Coat the terminals with pe-
troleum jelly or terminal protector spray to retard further
corrosion.
Tire Pressure - All Models
Inflate tires to pressures shown below:
Deck Caster Wheel = 20 PSI (137 kPa)
Drive = 15 PSI (103 kPa)
Rear = 20 PSI (137 kPa)
Wheel Bolt Torque - Model MS, MC, MD, MT
Check every 100 hours the eight (8) lug bolts that
mount the drive tires. They should be torqued to 75 to
85 ft-lb.
CAUTION
Important Battery Service, Installation, and
Changing Tips for MTEFI:
• Do not allow the battery cables to touch
opposing terminals. When connecting
battery cables attach the positive (+) cable
to positive (+) battery terminal first, followed
by negative (-) cable to negative (-) battery
terminal.
• Never start the engine when the cables
are loose or poorly connected to the
battery terminals.
• Never disconnect battery while engine is
running.
• Never use a quick battery charger to
start the engine.
• Never "jump start" the engine using
another source. Electricity fluctuations can
damage the ECU (Electronic Control Unit).
• Do not charge battery with key switch
"on."
• Always disconnect negative (-) battery
cable lead before charging battery, and
also unplug harness from ECU before per-
forming any welding on equipment.
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