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(9) Lubrication
(a) ATTOLUB MS No. 2
•
Oil groove and claw of Hammer
[12] <9>
•
8 mm dia. hole of the Anvil
[10]
or Anvil (A) Ass'y
<7>
, sliding section between the Anvil
[10]
or Anvil (A)
Ass'y
<7>
and the metal, and upper surface of the claw
•
Two Steel Balls D5.556
[11] <8>
•
Pinion tooth flanks of the Armature and Pinion Set
[26] <23>
, tooth flanks of Ring Gear (C)
[21] <18>
,
tooth flanks of the Idle Gear Set
[19] <16>
•
Metal oil groove of the Hammer Case
[8] <4>
(b) HITACHI MOTOR GREASE No. 29 (Models WH 14DMR/WH 18DMR only)
•
Two Steel Balls D3.5
[9]
•
Sliding section between Anvil
[10]
and Guide Sleeve (D)
[4]
(c) MOLUB-ALLOY 777-1
•
Cam groove and oil groove of Hammer
[12] <9>
•
Cam groove and sliding section of Spindle
[18] <15>
•
5 mm diameter hole of Idle Gear Set
[19] <16>
•
All around the Needle Roller (A)
[20] <17>
•
Twenty-eight Steel Balls D3.175
[13] <10>
(10) Screw tightening torque
•
Tapping Screw (W/Sp. Washer) D4 x 30 (Black)
[7] <3>
• • •
2.45 0.49 N
•
m (25 5 kgf
•
cm, 21.3 4.3 in-lbs.)
•
Tapping Screw (W/Flange) D4 x 20 (Black)
[33] <30>
• • • • • •
1.96 0.49 N
•
m (20 5 kgf
•
cm, 17.4 4.3 in-lbs.)
•
Machine Screw (W/Sp. Washer) M3 x 5
[37] <34>
• • • • • • • • • • • •
0.29 to 0.39 N
•
m (3 to 4 kgf
•
cm, 2.6 to 3.5 in-lbs.)
•
Special Screw (A) M5
[46] <43>
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
1.96 0.49 N
•
m (20 5 kgf
•
cm, 17.4 4.3 in-lbs.)
•
Brush cap
[32] <29>
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
0.78 0.10 N
•
m (8 1 kgf
•
cm, 6.9 0.9 in-lbs.)
10-2. Precautions in Disassembly and Reassembly of Battery Charger
Refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the Model
UC 14YFA, UC 18YG or UC 24YFA Battery Charger.