Hitachi FDS 12DVA, Техническое и сервисное руководство

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--- 16 ---
Fig. 14
(c) Set the assembly reassembled in step (b) to Housing (B) [31] and secure it with the seven Tapping Screws
(W/Washers) D3 x 16 [26].
(d) Verify proper operation of the Cap [4].
When the assembly procedure up to step (c) is completed, ensure that the number "1" on the Cap [4] and
the drill mark " " are in alignment with the triangle mark on Housings (A) and (B) [31]. If the Cap [4]
turnes loosely, correctly re-install the Click Spring [8] as it is improperly installed. If the number "1" on the
Cap [4] or the drill mark " " cannot reach the triangle mark on Housings (A) and (B) [31], correctly re-
install the Cap [4] referring to step (3) (c), as it is improperly installed.
(6) Other precautions in reassembly
(a) When the assembly procedure is completed, make sure that the turning direction of the Drill Chuck [2]
corresponds to the position of the Pushing Button [35]. When the Pushing Button [35] is pressed from the
(R)-marked side, the Drill Chuck [2] should turn clockwise when viewed from the rear (opposite side of the
Drill Chuck [2]). Also make sure that the turning speed of the Drill Chuck [2] switches between "HIGH" and
"LOW" by switching over the Shift Knob [36]. Make sure that the run-out of the Drill Chuck [2] holding a
9 mm dia. test bar is below 0.8 mm at a distance of 85 mm from the chuck end.
(b) The tightening torque of each screw is given below.
Special Screw (Left Hand) M5 x 35 [1] : 2.9 --- 3.9 N
•
m ( 30 --- 40 kgf
•
cm, 26.1 --- 34.8 in-lbs.)
Drill Chuck [2] : 12.7 --- 16.7 N
•
m (130 --- 170 kgf
•
cm, 113 --- 148 in-lbs.)
Screw Set D3 x 12 [15] : 0.6 --- 1.0 N
•
m ( 6 --- 10 kgf
•
cm, 5.2 --- 8.7 in-lbs.)
Machine Screw M3 x 8 [29] : 0.6 --- 0.9 N
•
m ( 6.5 --- 9.5 kgf
•
cm, 5.6 --- 8.3 in-lbs.)
Tapping Screw (W/Washer) D3 x 16 [26] : 1.1 --- 1.9 N
•
m ( 11 --- 19 kgf
•
cm, 9.5 --- 16.5 in-lbs.)
10-2. Precautions in Disassembly and Reassembly of Battery Charger
Please refer to the Technical Data and Service Manual for precautions in disassembly and reassembly of the
Battery Charger UC 9SD.
Fig. 15
[35]
[31]
Projections
[31]
Groove
Projection
Recesses