Zenoah BCZ4200CL - Manual (Page 13)

GB-13
G
B
BCZ4000DL / BCZ4000DW / BCZ4200CL
8. Operation
than placing the full workload on the arm and hands.
6. Take precautions to avoid wire, grass and dead, dry,
long-stem weeds from wrapping around the head
shaft. Such materials can stall the head and cause
the clutch to slip, resulting in damage to the clutch
system if repeated frequently.
ADJUSTING THE LINE LENGTH
• Your brush cutter is equipped with a semi- auto type
nylon line head that allows the operator to advance
the line without stopping the engine. When the line
becomes short, lightly tap the head on the ground
while running the engine at full throttle.
• Each time the head is bumped, the line advances
about 25 mm. For better effect, tap the head on bear
ground or hard soil. Avoid bumping in thick, tall grass
as the engine may stall by overload.
• Make the right and left lines the same length when
using the nylon line head.
(Be sure to install the genuine Zenoah debris guard
when using the nylon line head.)
• If the lengths of the right and left lines are different,
the balance of the nylon line head will be disrupted,
resulting in increased vibration and product damage.
9. Maintenance
• If you feel a vibration increase or drive shaft housing
shaking while using the nylon line head, immediately
stop operation, check the following items, and cor-
rect any problems.
The lengths of the right and left lines are significantly
different.
-->Make them the same length.
The cover is removed.
-->Make sure to install it securely.
There is a crack or damage outside.
-->Replace the damaged part.
• If vibration or shaking persists even after repairing, or
if you cannot identify the cause of abnormality, con-
tact your local authorized Komatsu Zenoah dealer for
repair.
• Never continue to operate the unit when vibration or
shaking of the drive shaft housing persists.
Every Every Every
25 50 100
System/components Procedure
Before
hours hours hours Note use
after after after
fuel leaks, fuel spillage wipe out ✔
fuel tank, air filter, fuel filter inspect/clean ✔ ✔ replace, if necessary
see adjusting replace carburetor
idle speed adjuster ✔
idling speed if necessary
clean and readjust GAP: 0.6 ~ 0.7 mm (.025 in)
spark plug ✔
plug gap replace, if necessary
cylinder fins, intake air cooling vent clean ✔
muffler, spark arrester, cylinder exhaust port clean ✔
throttle trigger, stop switch check operation ✔
replace if
cutting parts ✔
something’s wrong
angle transmission grease ✔
screws/nuts/bolts tighten/replace ✔ ✔ except adjusting screws
cutting attachment guard make sure to attach ✔
ENGINE
SHAFT