Hitachi H 30PV, Технические данные и руководство по обслуживанию

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Lubrication
Apply special grease (grease for electric impact drills) to the inner portion of the Connecting Rod [55],
the O-Rings [49] of the Striker [48] and the Piston [53], the inside diameter portion of Sleeve (A) [50] and
Hammer Holder (A) [16], the sliding portion of the Second Hammer [19], and Oil Seal (B) [39]. Seal 40 g of
special grease inside the Crank Case Ass'y [35] (Connecting Rod [55] side). Apply Hitachi Motor Grease
No. 29 to the Needle Bearing (HK0810) and the pinion portion of the Armature Ass'y [59]. Insert 50 g of the
Hitachi Motor Grease No. 29 into the Crank Case Ass'y [35] (First Gear [42] side).
Oil seals
Be very careful not to damage the O-Ring [33], O-Rings (I.D 19.2) [49], Oil Seal (B) [39], O-Ring (1AS-50)
[47], O-Ring (S-48) [11], O-Ring (S-15) [17] and O-Ring (S-38) [18].
9-1-3 Screw locking agent TB1401
Apply screw locking agent TB1401 to all hex. socket hd. bolts M4 and M5, and screw of Front Cover [10] (M48).
Note: If bolts are loosened by vibration, it could cause damage to the hammer. Ensure without fail that screw
locking agent is applied to threaded portions prior to assembly.
9-1-4. Tightening torque
(1) Hex. socket hd. bolts M4
(2) Hex. socket hd. bolts M5
(3) Tapping screws D4
(4) Tapping screws D5
(5) Housing mounting bolt (M5 x L35)
(6) Screws M5
(7) Screw of front cover (M48 pitch = 1.5)
9-1-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, special
attention should be given to the following items.
4.41
0.49
N•m (45
5
kgf•cm) (39.1
4.3
in-lbs.)
4.9
1.96
N•m (50
20
kgf•cm) (43.4
17.4
in-lbs.)
1.96 0.49 N•m (20 5 kgf•cm) (17.4 4.3 in-lbs.)
2.94 0.49 N•m (30 5 kgf•cm) (26.1 4.3 in-lbs.)
3.43 1.47 N•m (35 15 kgf•cm) (30.5 13.1 in-lbs.)
2.94 0.49 N•m (30 5 kgf•cm) (26.1 4.3 in-lbs.)
147 9.8 N•m (1500 100 kgf•cm) (1305 86 in-lbs.)
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