GB-12
SRTZ2601F
9. Maintenance
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 adjusting screw ✔
idling speed if necessary
clean and readjust GAP: .025 in (0.6 ~ 0.7 mm)
spark plug ✔
plug gap replace, if necessary
cylinder fins, intake air cooling vent
clean ✔
muffler, spark arrester, cylinder exhaust port clean, remove piled up carbon
✔
throttle lever, ignition switch check operation ✔
replace if
cutting parts ✔
something’s wrong
gear case, cutter case grease ✔
screws/nuts/bolts tighten/replace ✔✔not adjusting screws
ENGINE
SHAFT
•Before cleaning, inspecting, or repairing the unit, make sure that the engine has stopped and is cool.
•Use protective gloves whenever inspecting, removing, sharpening, and installing the blades.
MAINTENANCE CHART
BLADES
•When refilling the tank or resting, it is often a good
idea to use the time to oil the cutting blades.
•If a gap exists between the upper and lower blades,
follow the procedure below to adjust them so that they
fit more closely together.
1. Loosen lock nut (A) as shown in the diagram.
2. Tighten screw (B) fully, and then turn one-third to one-
half of a rotation backward.
3. While holding onto the screw to keep it in position,
tighten the lock nut.
4.Check to make sure that the flat washer (C) is loose
enough so that it may be turned by pressing on it with
a finger.
NOTE
•Screwing in the screw too tightly may make it impos-
sible for the blades to move. Conversely, not screw-
ing in the screw tightly enough may make the blades
of the trimmer feel dull and cause leaves and branches
to become caught in the blades of the trimmer.
(1) Upper blade
(2) Lower blade
QUICK TIP
•If the blades become so worn down that it is no longer
possible to eliminate the gap between them, you
should contact the authorized ZENOAH servicing
dealer from which you purchased your ZENOAH trim-
mer to have the blades resharpened or replaced.
GEAR CASE
• The reduction gears are lubricated by multipurpose,
lithium-based grease in the gear case. Supply new
grease every 25 hours of use or more often depend-
ing on the job condition. When adding lubricant, use
a grease gun to insert lubricant into the three grease
nipples located on the gear case.
TYPE OF LUBRICANT TO BE USED
Always be sure to use #2 lithium heat-resistant lubricant.
(1) Grease fitting