Hitachi G 10SD2 Service Manual page 5

•
Excellent overload durability
The Models G 10SD2, G 12S2 and G 13SD provide excellent overload durability thanks an improved cooling
mechanism and a high-power motor.
Practical test data: Comparison of torque when the stator coil temperature rise is 200 ˚K
106
80
100
•
Wear resistance of armature coil
Both ends of the armature coil are sealed with heat-resistant adhesive in addition to varnish treatment to
minimize wear of the armature coil caused by dust.
Comparison of wear resistance of armature coils when dust and fine gravel are sucked into the machines
100
100
100
G 10SD2/
G 12S2
G 10SD1/
60
G 12S1
B
70
C
50 0
Coating of heat-resistant adhesive.
G 10SD2/
G 12S2
G 10SD1/
G 12S1
30
B
40
C
50 0
G 13SD
C
0
G 13SD
C
0
--- 2 ---
100
70
50 100
100
40
50 100