BigDog MOWER CO, Общее руководство по обслуживанию

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REV A 4-4 121536
Park brake spring adjustment
Occasionally check the park brake spring adjustment using
the following method:
1. This procedure does not require engine power, there-
fore:
• Park the mower on level ground.
• Disengage the deck clutch.
• Place the steering control levers in the park brake
position.
• Stop the engine.
• Remove the ignition key.
• Disconnect the negative battery cable.
2. Make sure steering control levers are in the park brake
position.
3. Adjust the nylock nut on the end of the brake rod so
that 0.25" of thread is showing. Repeat for other side.
Figure 4-9
4. Reconnect the negative battery cable.
5. Close seat platform and re-install seat platform hard-
ware.
Transaxle Drive Belt
Inspect belts frequently for wear and serviceability.
Replace a belt that shows signs of severe cuts, tears, separa-
tion, weather checking and cracking, or burns caused by slip-
ping. Slight raveling of belt covering does not indicate failure;
trim ravelings with a sharp knife.
Inspect the belt pulley grooves and flanges for wear. A new
belt, or one in good condition, should never run against the
bottom of the groove. Replace the pulley when this is the
case, otherwise, the belt will lose power and slip excessively.
Never pry a belt to get it on a pulley as this will cut or dam-
age the fibers of the belt covering.
Keep oil and grease away from belts, and never use belt
dressings. Any of these will destroy the belt composition in a
very short time.
Transaxle belt adjustment
The transaxle drive belt tension remains constant by
means of a tension idler and spring. There is no tension
adjustment of this belt. Figure 4-10
IMPORTANT: Inspect the belt every month and replace as
needed. Replace the belt every two (2) years.
Do not operate the mower without plugging the
mower’s wiring harness into the seat switch. This
switch is an important part of the safety start
interlock system. Serious injury can result if the
seat switch is not plugged into the mower’s wiring
harness.
Never operate the mower with a non-functioning
seat switch. Always reconnect the seat switch to the
mower harness.
WARNING
WARNING
A. Nut B. Spring
Figure 4-9
If the transmission belt fails, loss of control will
occur especially when operating on a slope. If you
lose steering control while operating the machine,
place the steering control levers in the park brake
position immediately. Inspect the machine and
involve your dealer to resolve the problem.
A. Tension idler
B. Transaxle drive belt
C. Tension idler spring
D. Deck drive belt
E. Electric clutch
F. Transaxle pulleys
Figure 4-10
B
A
.25"
WARNING
B
A
C
E
D
F
F