Walker D21d User Manual

71
Maintenance Instructions CHECKING/SERVICING
Alternator Belt Tension
Check and adjust the alternator belt tension to avoid
engine overheating and insu󰀩cient battery
charging. Push on the belt in the middle of the span
between the alternator and crankshaft. If properly
tensioned, it should deect about 0.4 in. (10 mm).
Also check the belt for cracks or deterioration.
Alternator Belt
0.4 in. (10 mm)
Deection
Alternator Belt Tension
Security of Air Filtration Components
NOTE: The following inspection is only an exter nal
inspection and should be done without “dis-
turbing” the ltration components.
On a daily basis, visually inspect the external condi-
tion of the complete air cleaner system. The follow-
ing 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 tight-
ness.
3. Check to make sure the air lter restriction
gauge is in place and hose connections are se-
cure.
Battery
NOTE: For initial battery service during setup, re fer
to Battery Service in Assembly Instructions.
IMPORTANT: Make sure battery is securely mount-
ed 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 sys-
tems.
Electrolyte Level
The battery electrolyte level should be checked af-
ter every 25 hours of operation. To check electro-
lyte level:
1. Remove battery cell ller caps.
2. Check the electrolyte level. If the level is below
the bottom of the vent well, ll with distilled wa-
ter to the bottom of the vent wells [1/4 to 1/2 in.
(6 to 13 mm) above the plates].
3. Replace ller caps.
IMPORTANT: DO NOT overll the battery. Electro-
lyte will overow through the vented caps onto parts
of the machine and WILL result in severe corrosion.
Cleaning the Terminals
If battery terminals are corroded, remove battery
from the mower. Using a wire brush, remove corro-
sion with a solution of one part baking soda and
four parts water. Rinse with clean water. Coat the
terminals with petroleum jelly or terminal protector
spray to retard further corrosion.

Walker D21d Specifications

General

Brand	Walker
Model	D21d
Category	Lawn Mower
Language	English