Dolmar AT-3723 U Instruction Manual page 15

Installing the handle
► Fig.12: 1. Grip 2. Handle 3. Screw
Insert the shaft of the handle into the grip. Align the
screw hole in the grip with the one in the shaft. Tighten
the screw securely.
► Fig.13: 1. Handle clamp 2. Screw
Place handle between handle clamp and handle holder.
Adjust the handle to an angle that provides a comfortable work-
ing position and then secure by firmly hand-tightening knob.
Installing the guard
WARNING:
Never use the tool without the guard illus-
•
trated in place. Failure to do so can cause
serious personal injury.
• Always use the tool with the approved combina-
tion of the safety equipments. Otherwise contact
with a cutting tool may cause serious injury.
• Permitted combination for the cutting tool and
the guard may differ from country to country.
Follow your region's regulations.
For metal blade
► Fig.14
► Fig.15: 1. Clamp 2. Bolt
For nylon cutting head or plastic blade
CAUTION:
• Take care not to injure yourself on the cutter
for cutting the nylon cord when installing nylon
cutting head or plastic blade.
► Fig.16
► Fig.17: 1. Cutter 2. Clamp 3. Bolt
Align the clamp on the pipe with the protector. And
tighten them with bolts.
Installing the metal blade (optional
accessory)
WARNING:
• The outside diameter of the metal blade must
be 230 mm. Never use any blade exceeding
230 mm in outside diameter.
CAUTION:
• The metal blade must be well polished, free of
cracks or breakage. Polish or replace the metal
blade every three hours of operation.
• Always wear gloves when handling the metal blade.
• Always attach the blade cover when the tool is
not in use or is being transported.
• The metal blade-fastening nut (with spring washer)
wears out in course of time. If there appears any wear
or deformation on the spring washer, replace the nut.
Ask your local authorized service center to order it.
• Replace the cup in case of crack or breakage
due to attrition.
NOTICE:
• Be sure to use genuine Dolmar metal blade.
Turn the tool upside down so that you can replace the
metal blade easily.
► Fig.18: 1. Hex wrench 2. Nut 3. Cup 4. Clamp
washer 5. Metal blade 6. Receive washer
Mount the metal blade onto the shaft so that the guide
of the receive washer fits in the arbor hole in the metal
blade. Install the clamp washer and secure the metal
blade with the hex nut with 13 to 23 Nm of tightening
torque during holding the receive washer with hex
wrench.
► Fig.19: 1. Hex wrench 2. Box driver 3. Tighten
To dismount the metal blade, insert the hex wrench
through the hole on the protector cover and the gear
case. Rotate the receive washer until it is locked with
the hex wrench. Loosen the hex nut (left-hand thread)
with the socket wrench and remove the nut, clamp
washer and hex wrench.
► Fig.20
Make sure that the blade is the left way up.
Installing nylon cutting head or
plastic blade (optional accessory)
CAUTION:
• If the nylon cutting head / plastic blade acci-
dentally impacts a rock or hard object during
operation, stop the tool and inspect for any
damage. If the nylon cutting head / plastic
blade is damaged, replace it immediately.
Use of a damaged cutting tool could result in
serious personal injury.
NOTICE:
• Be sure to use genuine Dolmar nylon cutting head
/ plastic blade.
Turn the tool upside down so that you can replace the
nylon cutting head easily.
► Fig.21: 1. Nylon cutting head 2. Metal guard
3. Receive washer 4. Hex wrench 5. Tighten
► Fig.22: 1. Plastic blade 2. Metal guard 3. Receive
washer 4. Hex wrench 5. Tighten
Insert the hex wrench through the hole on the motor
housing and rotate the receive washer until it is locked
with the hex wrench. Place the nylon cutting head /
plastic blade onto the threaded spindle directly and
tighten it by turning it counterclockwise. Remove the
hex wrench.
To remove the nylon cutting head / plastic blade, turn
it clockwise while holding the receive washer with the
hex wrench.
Hex wrench storage
► Fig.23: 1. Hex wrench
When not in use, store the hex wrench as shown in the
figure to keep it from being lost.
15 ENGLISH