Hitachi DH 52ME Service Manual page 18

• Application of Hitachi Motor Grease No. 29 to the weight pin and leaf spring (B)
Apply grease to the sliding
surface of the outside.
Weight Pin {112}
CAUTION: Be sure to apply TB1401 screw locking agent to the threads of the following screws and
bolts. Otherwise, the screws or bolts loosened by vibration could cause damage to the
product body.
M8
• Bolt M8 x 35 <19> for mounting the cylinder case ······························ 19.6
M6
• Bolt M6 x 45 [108] {130} for mounting the crank case (housing side) ······ 9.8
• Bolt M6 x 22 [144] {154} for mounting the gear cover (crank case side) ·· 9.8
M5
• Bolt M5 x 18 [112] {121} for mounting the crank cover ························ 7.84
• Bolt M5 x 12 <68> for mounting the handles (A) and (B) ······················ 4.9
• Bolt M5 x 14 <59> and Bolt M5 x 16 <88> for mounting the back cover ··· 3.92±0.49 N•m (40±5 kgf•cm)
• Bolt M5 x 14 <59> for mounting the tail cover ···································· 5.9±1.5 N•m (60±15 kgf•cm)
• Bolt M5 x 12 <12> for mounting the cylinder case cover ······················ 3.92±0.49 N•m (40±5 kgf•cm)
• Bolt M5 x 30 {113} for mounting the vibration absorber ························ 7.84
• Bolt M5 x 16 {118} for mounting the spring holder ······························ 7.84
D4
• Screw D4 x 16 <84> for mounting the cord clip ·································· 1.96±0.49 N•m (20±5 kgf•cm)
• Screw D4 x 25 <79> for mounting the handles (A) and (B) ··················· 1.96±0.49 N•m (20±5 kgf•cm)
D5
• Screw D5 x 60 <53> for mounting the stator sensor PCB set ················ 2.94±0.49 N•m (30±5 kgf•cm)
Weight Ass'y {109}
Washer {110}
Apply grease to both sides and
attach it to the weight.
Tightening torque
-17-
Apply grease to the sliding
portions with the weight.
Leaf Spring (B) {114}
+20
+1.96
N•m (200
0
+20
+1.96
N•m (100
0
+1.96 +20
N•m (100
0
+0.98
+10
N•m (80
0
0
+0.98
+10
N•m (50
0
0
+1.96
+20
N•m (80
0
+1.96
+20
N•m (80
0
kgf•cm)
0
kgf•cm)
0
kgf•cm)
0
kgf•cm)
kgf•cm)
kgf•cm)
0
kgf•cm)
0