Karcher STH 8.66, STH 5.56 Preparing the machine for non-use, Warranty, Replacing a shear bolt

English Operating Manual – Snowthrower

•If there is no additional (higher) hole or it is already in use, then

–Remove the V-belt cover (4).

–Hook spring (6) at the end of the coupling cable into the next highest hole (from 7a to 7b, from 7b to 7c).

–Replace V-belt cover.

Adjusting the shift lever (STH 8.66, STH 10.66 C)

Figure 12

•Remove spring clip (4) and washer (5), extract spindle

nut (6) from the hole (7).

•Press gearshift arm (2) down- wards, set shift lever (3) to gear “6”.

•Rotate spindle nut (6) in such

a way that the pin can be put into the same hole (7).

•Secure spindle nut with washer and spring clip.

Adjusting the caterpillar track (STH 10.66 C)

Figure 6

The caterpillar track (1) is correctly adjusted if it can be forced down by hand by 10–12 mm. If it can be forced down by a greater or lesser amount, it must be adjusted:

•Set the machine on a secure and horizontal support so that the caterpillar tracks no longer touch the ground.

•Rotate nut (2) until the caterpillar track has the correct tension:

–To tighten, rotate in clockwise direction

–To slacken, rotate in anti- clockwise direction.

Replacing the caterpillar track (STH 10.66 C)

Figure 6

•Set the machine on a secure and horizontal support so that the caterpillar tracks no longer touch the ground.

•Rotate nut (2) sufficiently in an anti-clockwise direction to enable the caterpillar track to be removed.

•Replace caterpillar track and adjust the tension of the new caterpillar track with the nut (2) (see “Adjusting the caterpillar track”).

Replacing a shear bolt

Figure 9

The worm (3) is fastened to the drive shaft (4) with shear bolts (1) and lock-nuts (2). The bolts are constructed in such a way that they break (shear off) if the worm strikes solid extraneous objects. In this way damage to the machine is prevented. These bolts (1) and nuts

(2)may only be replaced with

original spare parts (two replace- ment bolts and lock-nuts are supplied with the machine):

• Remove sheared-off bolt and nut, clean place of attachment and lubricate it.

• Use a new shear bolt and lock-nut to replace the broken one.

Replacing the clearing plate (STH 5.56, STH 8.66, STH 10.66 C)

Figure 7

•Remove screws (6), washers (7) and nuts (8).

•Replace clearing plate (5).

•Screw new clearing plate to housing with screws, washers and nuts.

Replacing the clearing plate (STH 953)

Figure 11

•Tip machine backwards.

•Remove screws (4) and nuts (5).

•Replace clearing plate (2).

•Screw new clearing plate to housing with screws and nuts.

•Tip machine back again, check setting (see “Adjust clearing plate”).

Replace skids

Figure 7

•Remove nuts (2), washers (3) and bolts (4).

•Replace skids (1) on both sides of the housing.

•Adjust new skids (see “Adjust the skids”).

Preparing the machine for non-use

!Danger of causing an explosion by fuel fumes igniting

Before you prepare the machine for non-use, empty the fuel tank into a suitable container in the open air (see “Engine instructions”).

When the machine is not to be used for more than a month, e.g. after the winter:

•Prepare engine (see “Engine instructions”).

•Clean machine.

•To protect from rust, wipe over all metal parts with an oily cloth or spray with spray lubricant.

•Park the machine in a clean, dry enclosed space.

Warranty

The warranty terms issued by our company or importer are valid in every country.

We remedy faults to your machine free of charge within the scope of the warranty provided that the

cause proves to be a material or manufacturing error. Should you need to call upon the warranty, please apply to the vendor of your machine or to the nearest agency.

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