Hitachi manual 9

2.	Precautions
○	The case must be securely attached to the cover.
○	Check the cover, case and other components for cracks or
	other damage.
○ Check the case and button for wear.
	If the wear limit mark (17) on the case is no longer visible or
	there is a hole in the bottom (18) of the button, change the new
	parts immediately. (Fig. 13)
	17	18

Fig. 13

○ The cutting head must be securely mounted to the unit’s gear case.

○ For outstanding performance and reliability, always use Hitachi nylon cutting line. Never use wire or other materials that could become a dangerous projectile.

○ If the cutting head does not feed cutting line properly, check that the nylon line and all components are properly installed. Contact Hitachi Authorized Service Centers if you need assistance.

3. Installation (Fig. 14)

○ Install cutting head on gear case of grass trimmers/brush cutters. The mounting nut is left-hand-threaded. Turn clockwise to loosen/counterclockwise to tighten.

19

Fig. 14

For curved shaft models, the mounting nut is right-hand-threaded. Turn counterclockwise to loosen/clockwise to tighten.

NOTE

○ Since the cutter holder cap is not used here, keep it for when a metal blade is used, if so equipped.

○ Insert Allen wrench (19) into the hole of the gear case in order to lock the cutter holder.

4. Adjusting line length

○ Set the engine speed as low as possible and tap the head on the ground. The nylon line will be drawn out about 3 cm with each tap. (Fig. 15)

Fig. 15

Also, you can extend the nylon line by hand but the engine must be completely stopped. (Fig. 16)

Fig. 16

○Adjust the nylon line to the proper length of 11–14 cm before each operation.

Installation of cutting blade (Fig. 17)

NOTE

Please note that the guard which is supplied with CG22EAS(SL), CG24EAS(SL), CG27EAS(SL) is designed only for nylon cutting lines.

Never use it for a cutting blade.

If the machine is used with blade, make sure to select the appropriate blade guard and the guard bracket, as specified by Hitachi Authorized Service Centers, and follow the instructions shown in this manual (Fig 9-c) for installation.

Specific parts: CG22EAD Parts List (195) COVER BRACKET, (196) HEX.HOLE BUTTON SCREW 6×25S, (218) GUARD HOLDER, (219) COVER.

Please ask Hitachi Authorized Service Centers.

(If so equipped)

When installing a cutting blade, make sure that there are no cracks or any damage in it and that the cutting edges are facing the correct direction.

19

21

20

22

23

Fig. 17

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