Manual Protool ISP 330 EB (page 27 of 182) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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11 Care and maintenance

WARNING

Before replacing the tool cutting set, unplug the

machine.

Caution! The chain cutting edges can cause in-

jury.

Caution! The cutting edges of the guide bar can

cause injury.

Wear protective gloves!

The ISP 330 EB insulation saw cutting tool set’s

chain links are 3/8″ apart, and their thickness is

1.3 mm. Other tool sets can be used only with ex-

plicit approval from the manufacturer. The spacing

of the chain links must be identical to the spacing

of the chain sprocket and to the spacing of the

guide bar pulley.

The complete cutting tool set consists of:

a) chain sprocket [8-3]

b) guide bar [2-4]

c) chain [2-3]

The cutting tool set’s service life depends mainly

on lubrication and chain tension. For this reason

the chain tension must be checked and adjusted

both before and during work.

11.1 Chain tension

With the cover of the chain sprocket [2-1] slightly

released, rotate the chain adjustment wheel [2-9]

in the direction of the + arrow until the bottom part

of the chain hugs the guide bar of the chain, as

shown in Fig. [10]. Then tighten the chain sprocket

cover ﬁ rmly [2-1] by turning the fastening wheel

[2-2] clockwise. Check the chain for correct tension

by slightly pulling the bottom part of the chain, as

shown in Fig. [10]. Once released, the chain must

return to the initial position and closely cling to

the guide bar.

Chains that have been tightened while hot must

be released when the work is ﬁ nished. When the

tightened chain has cooled, high tension occurs

due to its shrinkage, which might cause damage

to the machine!

11.2 Maintaining and sharpening the

chain

The chain must be sharpened if the sawdust is too

ﬁ ne, see Fig. [11].

11.3 Lubricating the chain

The oil reservoir capacity is 240 ml. To avoid heavy

wear, the chain and its guide bar must be continu-

ously lubricated during operation of the machine.

Lubrication is provided by an oil feed pump, which

delivers an optimal amount of oil into the lubrica-

tion groove in the guide bar. It is very important to

check the oil reservoir level and the chain lubrica-

tion function before you start working. If the oil

level [1-8] drops to the bottom indicator on the oil

gauge, the oil must be replenished.

Recommendation:

Use only the Protool oil intended for chain saw lu-

brication. The use of used oil or any oil not intended

for chain lubrication is prohibited. Before opening

the oil reservoir, carefully clean the area around

the oil cap! Sawdust and chips that could get into

the reservoir may block the oil channels, which can

lead to a serious breakdown in chain lubrication!

Due to their composition, biodegradable oils for

chain lubrication have reduced lubricating ability,

and a prolonged break in the operation of the ma-

chine might make the inner lubrication channels

sticky. Therefore follow manufacturer recommen-

dations!

11.4 Maintaining the guide bar

The one-sided wear of the guide bar can be prevent-

ed by turning it after each time the chain is sharp-

ened. Worn-out outer guide surfaces (Fig. [9b])

are considered a normal operational wear. Use a

ﬁ ne, ﬂ at ﬁ le to remove burred edges. The inner

guide surfaces (Fig. [9a]) become worn due to in-

sufﬁ cient lubrication, incorrect chain lubrication, or

improper working procedure. The guide bar must

be replaced!

Under no circumstances can the chain links touch

the bottom of the guide bar channel. If the chain

touches the bottom of the channel, the guide bar

is so worn that it must be replaced. The lubrication

ports and the guide bar channel (groove) must be

clean at all times.

11.5 Maintaining the chain sprocket

Most difﬁ culties with the chain are caused by in-

correct chain tightening or late replacement of the

chain sprocket. A worn chain sprocket can very

quickly damage the good portion of an expensive

cutting tool assembly. Don’t be stingy about re-

placing the chain sprocket! It is recommended that

you replace the chain sprocket upon the second

replacement of the chain or earlier.

11.6 Replacing the chain and

guide bar

Put the machine in the basic position and disman-

tle the chain sprocket cover [2-1] by rotating the

fastening wheel [2-2] counter clockwise, as shown

in Fig. [2]. Stretch the chain [2-3] over the chain

sprocket [2-8] and remove it together with the

guide bar [2-4]. Put a new chain [2-3] on a (new)

guide bar [2-4] and insert it into the machine.

Maintain the proper position of the cutting teeth,

according to the direction of rotation. The direction

of rotation is indicated by an arrow on the body of

the machine, and under the chain sprocket cover

there is a symbol showing how the chain should

be mounted. Place the chain’s guide links into the

chain sprocket teeth [2-8] and turn using the chain

adjustment wheel [2-9] (when rotated clockwise

as seen from above, the pin moves upwards and

releases; when rotated counter clockwise as seen

from above, the pin moves downward) so that the

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Protool ISP 330 EB Manual

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