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Lubrication Points And Type Of Lubricant; Screw Tightening Torque - Hitachi C 7SB3 Service Manual

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Lubrication points and type of lubricant

Apply specified amount of grease to the following portions.
Grease (JF-375)
• Inner hole of the metal of the Gear Cover [26] ························································· About 0.5 g
Grease (SEP-3A)
• Pinion tooth flank of the Armature [22] ··································································· About 1 g
• Gear tooth flank of the Spindle and Gear Set [1] ······················································ About 1 g
• Inside the gear chamber of the Gear Cover [26] ······················································ About 5 g
Prepare the following grease as necessary.
Item
Grease (SEP-3A)
Location
[2]
Bearing Holder
[12]
TCT Saw Blade
[9]
Bearing Cover
[16]
Lever
[27]
Flow Guide (A)
[25]
Flow Guide (B)
[26]
Handle Cover
[44]
Cord Holder
[28]
Cushion
[40]
Housing Ass'y
[41]
Brush Holder
[42]
Carbon Brush
[45]
Switch
[58]
Lever
[67]
Base
[64]
Step Pin D6 x 13
*1: Tighten the Flat Hd. Screw M6 x 20 [29] until it is flush with the Cushion [28].
Registered part name
Grease (SEP-3A) (100 g)
Grease (SEP-3A) (2.5 kg)

Screw tightening torque

Name of screw or bolt
[3]
Seal Lock Flat Hd. Screw M5 x 14
[14]
Hex. Socket Hd. Bolt M8 x 15.5
[15]
Seal Lock Flat Hd. Screw M4 x 10
[15]
Machine Screw (W/Washers) M4 x 12 (Black)
[15]
Machine Screw (W/Washers) M4 x 12 (Black)
[24]
Tapping Screw (W/Flange) D4 x 20 (Black)
[24]
Tapping Screw (W/Flange) D4 x 20 (Black)
[24]
Tapping Screw (W/Flange) D4 x 20 (Black)
[29]
Flat Hd. Screw M6 x 20
[38]
Machine Screw (W/Washers) M5 x 50 (Black)
[39]
Hex. Socket Set Screw M5 x 8
[43]
Brush Cap
[46]
Tapping Screw (W/Flange) D4 x 12
[57]
Lock Nut
[60]
Seal Lock Screw (W/Sp. Washer) M4 x 14
[61]
Seal Lock Hex. Socket Set Screw M5 x 6
-8-
Net weight
Code No.
100 g
930035
2.5 kg
930038
Tightening torque
No.
used
N•m
2
2.7 - 4.1
2.0 – 3.0
1
7.8 - 11.8
2
1.4 - 2.2
1.0 – 1.6
1
1.4 - 2.2
1.0 – 1.6
1
0.8 - 1.2
0.6 – 0.9
1
1.4 - 2.2
1.0 – 1.6
5
1.5 - 2.5
1.1 – 1.84
1
1.5 - 2.5
1.1 – 1.84
1
*1
3
2.7 - 4.1
2.0 – 3.0
2
0.5 - 1.0
0.4 – 0.74
2
0.5 - 1.5
0.4 – 0.74
2
1.5 - 2.5
1.1 – 1.84
1
1.4 - 2.0
1.0 – 1.5
1
1.4 - 2.2
1.0 – 1.6
2
2.7 - 4.1
2.0 – 3.0
lbf-ft
5.8 – 8.7
*1

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