Dolmar AT-3724 U Manual De Instrucciones página 16

Reversing Switch for Debris Removal
WARNING:
• Always be sure that the tool is switched off and
battery cartridge is removed before removing
weeds or debris entangled in the tool that could not
be removed when operated in the reverse mode.
Failure to switch off and remove the battery cartridge
may result in serious personal injury from accidental
start-up.
For model AT-3724 U (Fig. 11)
For model AT-3731 C (Fig. 12)
This tool has a reversing switch which is only provided to
change the direction of rotation so that it can be used to
remove weeds and debris entangled in the tool. To
operate the tool normally the "A" side of the switch should
be depressed.
To remove weeds and debris that are jammed in the
rotating head the tool can be reversed by depressing the
"B" side of the switch. In the reverse position the tool will
only operate for a short period of time and automatically
shut off.
NOTICE:
• Always check the direction of rotation before operation.
• Use the reversing switch only after the tool comes to a
complete stop. Changing the direction of rotation
before the tool stops may damage it.
Speed adjusting dial (Fig. 13)
The tool speed can be adjusted by turning the adjusting
dial. Turn the speed adjusting dial clockwise for higher
speed, and counterclockwise for lower speed.
Nylon cutting head (optional accessory
for a product that comes with a cutter
blade)
Nylon cutting head
NOTICE:
• Do not attempt to bump feed the head while the tool is
operating at a high RPM. Bump feeding at a high RPM
may cause damage to the nylon cutting head.
• The bump feed will not operate properly if the head is
not rotating. (Fig. 14)
The nylon cutting head is a dual string trimmer head
provided with a bump & feed mechanism.
To cause the nylon cord to feed out, the cutting head
should be bumped against the ground while rotating at a
low RPM.
NOTE:
If the nylon cord does not feed out while bumping the
head, rewind/replace the nylon cord by following the
procedures described under "Maintenance."
ASSEMBLY
WARNING:
• Always be sure that the tool is switched off and
battery cartridge is removed before carrying out
any work on the tool. Failure to switch off and remove
the battery cartridge may result in serious personal
injury from accidental start-up.
16
• Never start the tool unless it is completely
assembled. Operation of the tool in a partially
assembled state may result in serious personal injury
from accidental start-up.
Installing the handle
For model AT-3724 U (Fig. 15)
Insert the shaft of the handle into the grip as shown. Align
the screw hole in the grip with the one in the shaft. Tighten
the screw securely.
Fit the barrier and grip onto the shaft pipe with four
screws. Make sure that the spacer on the shaft pipe is
located between the grip/barrier assembly and the
hanger.
Place handle between handle clamp and handle holder.
Adjust the handle to an angle that provides a comfortable
working position and then secure by firmly hand-
tightening knob. (Fig. 16)
For model AT-3731 C (Fig. 17)
Fit the grip onto the shaft pipe and tighten it with two hex
bolts. Make sure that the spacer on the shaft pipe is
located between the grip assembly and the other grip. Do
not remove or shrink the spacer.
Installing the guard
WARNING:
• Never use the tool without the guard illustrated in
place. Failure to do so can cause serious personal
injury.
For cutter blade (only for model AT-3724 U) (Fig. 18)
Install the protrusion of the protector clamp to the gear
case until aligning the position with the label on the pipe.
Fix the protector to the protector clamp with the two bolts
and then tighten both bolts by the hex wrench evenly.
(Fig. 19)
For nylon cutting head
For AT-3731 C (Fig. 20)
Align the protrusions on the protector attachment with the
grooves of the protector.
Align the protrusions on the protector holder attachment
with the groove of the protector holder. (Fig. 21)
After attaching the protector and the protector holder,
tighten the hex bolts securely. (Fig. 22)
For AT-3724 U (optional accessory)
Remove the hex bolts with hex wrench. Then remove the
protector clamp and protector. (Fig. 23)
Install the protector attachment and protector holder
attachment to the gear case.
To install the protector for nylon cutting head, follow the
installing method mentioned previously. (Fig. 24)
Installing the wire guard
CAUTION:
• Before adjusting the wire guard, wait for the cutting
head comes to standstill. Do not adjust the wire guard
with your foot.
To reduce the risk damaging the objects in front of the
cutting head, insert the wire guard so that it controls the
cutting range of the mowing line. (Fig. 25)