Tanaka AST-210 - Manual (Page 8)

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Owner’s Manual AST-210,AST-5000
When using a trimmer head (2) with two-piece type blade guard,
attach the guard extension to the blade guard. (Fig. 1-7)
Then locate the guard above the angle transmission. (Fig. 1-7B)
NOTE!
If your unit has guard location label on drive shaft tube,
follow the indication.
NOTE!
To remove the guard extension, refer to the drawings. Wear
gloves as the extension has a sharp line limiter, then push the
four square tabs on the guard one by one in order. (Fig. 1 -7C)
Other blade guards
When using a trimmer head locate the guard 20 mm (1/4 in.) or 120mm (5 in.)above the gear case.
When using a blade, mount the guard against the gear case. (Fig. 1 -8, 8B)
Installation of cutting equipment (Fig.1-9)
When installing a cutting blade, make sure that there is no cracks or any damage in it and that the cutting edges are facing the correct
direction.
NOTE! When installing cutter holder cap (1), be sure to set concave side upward.
Insert the allen wrench (2) into the hole of the angle transmission in order to lock the cutler holder (3). Please note that the cutter
fixing bolt (4) has left handed threads, (clockwise to loosen/counter-clockwise to tighten). Tighten the fixing bolt with the box wrench.
CAUTION! Before operation, make sure the blade has been properly installed.
CAUTION! If your unit is equipped with protection cover under a cutting blade, check it for weariness or
cracks before operation. If any damage or weariness is found, replace it, as it is an article of consumption.
Installation of the cutting head
NOTE! For installation see your cutting head Owner's manual, provided with the cutting head.
WARNING!
For TANAKA heads or TANAKA alloy head, use only flexible, non-metallic line recommended by the manufacturer. Never use wire or
wire-ropes. They can break off and become a dangerous projectile.
NOTE! When using TANAKA alloy head (CH-100), initial cuffing line length should be about 13cm each.
(Fig. 1-10)