Hitachi C 8FSE, C 8FSHE specifications Troubleshooting guide, 211

2. Troubleshooting guide

Item	Phenomenon	Cause	Factory	Inspection, repair or adjustment
			standard
1	Inaccurate cutting	(a) Inaccurate	0.15/100	• Readjust squareness with the
	--- Inaccurate	squareness between	(Dummy disc)	Nylock Bolt M8 x 25 [123].
	squareness of the	the turn table and the	(Fig. 59)	• Replace Hinge (A) Ass’y [87]
	cut surface	saw blade causes the	When sliding (tip)	or Gear Case [198] or Turn
	--- Cut surfaces do not	saw blade to cut into	0.25/100	Table [13] or Base Ass’y [56]
	fit together properly.	the workpiece at an	(Dummy disc)	(if deformed).
		angle.
		(b) Excessive deflection	φ	• Replace the TCT Saw Blade
		of the saw blade	0.15/ 205	[211].
			(Dummy disc)
		(Excessive vibration)		• Check for surface defects on
				Washer (D) [221] and repair
				with a file as necessary.
				• Replace Washers (D) [221].
	Fig. 59
		(c) Inaccurate	0.15/100	• Loosen the Bolt M8 x 35 [43]
		squareness between	(Fig. 60)	and adjust as necessary.
		fence (A) and fence		• Replace Fence (A) [55] and
		(B) and the saw blade		Fence (B) [47].
		(d) Surfaces of fence (A)	0.10 or less	• Loosen the Bolt M8 x 35 [43]
		and fence (B) are not	(Fig. 61)	and adjust surface alignment
		accurately aligned,		of Fence (A) [55] and Fence
		causing workpiece to		(B) [47] as necessary.
		deviate from proper		• Replace Fence (A) [55] or
	Fig. 60	squareness.		Fence (B) [47].
		(e) Inaccurate surface	0.15 or less	• Replace the Turn Table [13].
		flatness of the turn
		table.
		(f) Squareness between	Same as (a)	• Check precision after press-
		the saw blade and the	(Fig. 62)	fitting slide pipes (A) and (B)
		turn table is changed		of Hinge (A) Ass'y [87].
		when sliding.		If precision is poor, replace
	Fig. 61			them as necessary. (Fig. 62)

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