Maintenance Interval - Makita 197726-4 Instruction Manual

Vertical cut
When trimming hedges vertically, follow the steps below.
1. Pull the throttle lever fully.
2. Apply the blades to the hedge parallel to each other.
3. Trim the hedge from the bottom upwards with a swinging
movement.
► Fig.6
MAINTENANCE
WARNING:
Before inspecting or maintaining the equip-
ment, switch off the motor and remove the spark plug cap or
the battery cartridge. Otherwise blades or other parts may
move and result in serious injury.
WARNING:
Before handling or working around blades,
wear protective gloves and put the blade cover onto blades.
During the assembly or adjustment, your fingers may contact
with blades and it may cause serious injury.
WARNING:
When inspecting or maintaining the equipment,
always put the equipment down. Assembling or adjusting the
equipment in an upright position may result in serious injury.
WARNING:
Follow the warnings and precautions in the
chapter "IMPORTANT SAFETY INSTRUCTIONS" and the
instruction manual of the power unit.
Inspecting blades
Check the blades daily for damage, crack and dull edge. Ask our
authorized service center to replace damaged blades or sharpen dull
blades.
Adjusting the blade clearance
The upper/lower blades wear out gradually after operations. If you
cannot get a clean cut though the blades are sharp enough, adjust
the clearance as follows.
The tightness of the hex bolt decides the clearance of the blades.
The nut holds the hex bolt with certain tightness. Too loose clearance
causes blunt cut, but too tight clearance causes unnecessary heat
and sooner worn-out of the blades.
1. Loosen the nuts with a wrench.
2. Tighten the hex bolts lightly till they stop. And then, screw them
back a quarter to half turn each to gain necessary clearance.
3. Hold the hex bolts and tighten the nuts.

MAINTENANCE INTERVAL

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Whole unit Visually inspect for dam-
All fixing screws and nuts
Blades Inspect for damage, crack
Adjust the clearance
Gear case
Drive axle
Power unit
Before operation
aged parts
Tighten
and dull edge
Supply grease
Supply grease
4. Apply light oil on the friction surface of the blades.
5. Start the motor and operate the throttle on and off for a minute.
6. Measure the time necessary for the blades to stop after releasing
the throttle. If it is two seconds or longer, switch off the motor and
repeat the step 1 to 6.
7. Switch off the motor and touch the blade surface. If they are not
too hot to touch, you have made a proper adjustment. If they are too
hot to touch, turn the hex bolts back a little and repeat the step 5 to 7.
► Fig.7: 1. Nut 2. Hex bolt 3. Plate 4. Blade guard 5. Upper blade
6. Lower blade
Lubricating moving parts
NOTICE:
Follow the instruction of the frequency and amount
of grease supplied. Otherwise insufficient lubrication may damage
moving parts.
► Fig.8
Gear case:
Apply grease every 25 working hours.
1.
The grease hole locates under the bolt. Remove the bolt to
lubricate.
2. Add approx. 5 g (7 cc) of grease to the grease hole.
3. Return the bolt after lubrication.
► Fig.9: 1. Grease hole
NOTE: After filling correct amount of grease, grease will come out a
bit from the base of the blade during the first operation.
Drive axle:
Apply grease every 25 working hours.
Overall inspection
• Tighten loose bolts, nuts and screws.
• Check for damaged parts and blades. Ask our authorized service
center to replace them if necessary.
Storage
WARNING:
chapter "IMPORTANT SAFETY INSTRUCTIONS" and the
instruction manual of the power unit.
When storing the hedge trimmer attachment separated from the
power unit, put the cap onto the end of the shaft.
► Fig.10
Daily (10h)
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Refer to the instruction manual of the power unit
7 ENGLISH
Follow the warnings and precautions in the
25 h
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If required
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