Manual Dolmar AT-1831C (page 13 of 25) (English, German, Dutch, Danish, French, Italian, Portuguese, Turkish, Spanish)

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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. 12)

The nylon cutting head is a dual grass 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.

• 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.

Mounting the attachment pipe

Only for model AT-1831 CD (Fig. 13)

To mount the attachment to a power unit:

1. Make sure that the lever is not tightened.

2. To open the entrance of the joint, depress the joint

cover. (Fig. 14)

3. Align the protrusion on the pipe (cutting tool side ) with

the concave portion of the joint part.

4. Insert the attachment pipe into the joint part. Make

sure that the surface of the lock lever is horizontal to

the pipe.

5. Tighten the lever firmly as shown.

To remove the attachment, loosen the lever, press the

front part of the lock lever and then slide the pipe.

Installing the grip (Fig. 15)

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.

CAUTION:

• For model AT-1831 CD, never install the grip on the

joint.

Installing the guard

WARNING:

• Never use the tool without the guard illustrated in

place. Failure to do so can cause serious personal

injury. (Fig. 16 & 17)

Align the protrusions on the protector with the grooves of

the motor housing. (Fig. 18)

Align the protrusions on the protector holder with the

concave portions of the motor housing. Insert the

protector holder to the motor housing. (Fig. 19)

After attaching the protector and the protector holder to

the motor housing, tighten the hex bolts securely.

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. (Fig. 20)

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. 21)

Slightly expand the wire guard outward and then insert it

into the holes of the protector.

NOTE:

• Do not expand the wire guard outward too much.

Otherwise it may break. (Fig. 22)

When wire guard is not in use, lift it for the idle position.

Installing nylon cutting head

NOTICE:

• Be sure to use genuine Dolmar nylon cutting head.

Turn the tool upside down so that you can replace the

nylon cutting head easily. (Fig. 23)

Insert the hex wrench through the hole on the protector

cover and the motor housing and rotate the receive

washer until it is locked with the hex wrench. Mount the

metal guard, the nylon cutting head onto the threaded

spindle directly and tighten it by turning it

counterclockwise. Remove the hex wrench.

To remove the nylon cutting head, turn the nylon cutting

head clockwise while holding the receive washer with the

hex wrench.

CAUTION:

• If during operation the nylon cutting head

accidentally impacts a rock or hard object the

trimmer should be stopped and inspected for any

damage. If the nylon cutting head is damaged it

should be replaced immediately. Use of a damaged

nylon cutting head could result in serious personal

injury.

OPERATION

Correct handling of tool

Attachment of shoulder harness (Fig. 24)

Put the shoulder harness on. Then connect the buckles

on both the hook and the harness. Be sure that the

buckles click and lock completely in place.

Only for model AT-1831 CD (Fig. 25)

When the cap is not in use, hang it on the hook.

Detachment (Fig. 26)

The buckle is provided with a means of quick release.

Simply squeeze the sides and the buckle to release the

tool.

WARNING:

• Be extremely careful to maintain control of the tool

at all times. Do not allow the tool to be deflected

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Dolmar AT-1831C Manual

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