HDB Series and M1 Series Heavy Duty Brushless Alternators Caterpillar


Alternator

Usage:

769C 01X



Illustration 1g00824608

M1 Series Alternator




Illustration 2g00829660

HDB Series Alternator

Table 1
Specifications for M1 Series Alternators     Specifications for HDB Series Alternators    
Part Number     6N-9294     5S-9088
100-5047    
169-3345     185-5294     177-9953     197-8820    
Consist Number     9G-4574     6T-7223
100-5045    
None     None     None     None    
Application     Heavy Duty     Heavy Duty     Heavy Duty     Heavy Duty     Heavy Duty     Heavy Duty    
Polarity     Negative Ground     Negative Ground     Negative Ground     Negative Ground     Negative Ground     Negative Ground    
Type of "B-" Terminal     Isolated Ground     Isolated Ground     Case Ground     Case Ground     Case Ground     Case Ground    
Rotation     CW / CCW     CW / CCW     CW     CW     CW     CW    
Voltage Rating     24 V     24 V     24 V     24 V     24 V     24 V    
Output Voltage     28 ± 1 V     28 ± 1 V     28 ± 1 V     28 ± 1 V     28 ± 1 V     28 ± 1 V    
Rated Output Current     35 A     50 A     50 A     65 A     80 A     95 A    
Rotor Field Winding Current at 28 V     3.08 - 3.15 A     3.08 - 3.15 A     3.26 - 3.59 A     3.26 - 3.59 A     3.26 - 3.59 A     3.26 - 3.59 A    
Rotor Field Winding Resistance     9 ± 0.1 Ohms     9 ± 0.1 Ohms     8.2 ± 0.4 Ohms     8.2 ± 0.4 Ohms     8.2 ± 0.4 Ohms     8.2 ± 0.4 Ohms    
Stator Winding Resistance (1 Coil)     121 ± 9 mOhms     111 ± 9 mOhms     108 ± 6 mOhms     62.9 ± 3.2 mOhms     38.1 ± 2 mOhms     26.7 ± 1.4 mOhms    
Turn On Speed     2000 rpm     2000 rpm     2000 rpm     2000 rpm     2000 rpm     2000 rpm    
Test Speed at 27 V and Rated Output Current (Cold)     4000 rpm     4000 rpm     4000 rpm     4000 rpm     4000 rpm     4000 rpm    
Pulley Nut Torque (1)     102 ± 7 N·m (75 ± 5 lb ft)    
102 ± 7 N·m (75 ± 5 lb ft)    

127 ± 10 N·m (94 ± 7 lb ft)    

127 ± 10 N·m (94 ± 7 lb ft)    

127 ± 10 N·m (94 ± 7 lb ft)    

127 ± 10 N·m (94 ± 7 lb ft)    
"B+" Nut Torque (2)    
29 ± 8 N·m (21 ± 6 lb ft)    

29 ± 8 N·m (21 ± 6 lb ft)    

18.2 ± 2.4 N·m (13.4 ± 1.8 lb ft)    

18.2 ± 2.4 N·m (13.4 ± 1.8 lb ft)    

18.2 ± 2.4 N·m (13.4 ± 1.8 lb ft)    

18.2 ± 2.4 N·m (13.4 ± 1.8 lb ft)    
"B-" Nut Torque (3)    
4.4 ± 1 N·m (39 ± 9 lb in)    

4.4 ± 1 N·m (39 ± 9 lb in)    
N/A     N/A     N/A     N/A    
"B-" Bolt Torque (8)     N/A     N/A    
4.4 ± 1 N·m (39 ± 9 lb in)    

4.4 ± 1 N·m (39 ± 9 lb in)    

4.4 ± 1 N·m (39 ± 9 lb in)    

4.4 ± 1 N·m (39 ± 9 lb in)    
Dimension (4)    
84.9 ± 1.0 mm (3.34 ± 0.04 inch)    

84.9 ± 1.0 mm (3.34 ± 0.04 inch)    
-     -     -     -    
Dimension (5)    
100.65 ± 0.55 mm (3.963 ± 0.022 inch)    

100.65 ± 0.55 mm (3.963 ± 0.022 inch)    

100.6 ± .5 mm (3.96 ± 0.02 inch)    

100.6 ± .5 mm (3.96 ± 0.02 inch)    

100.6 ± .5 mm (3.96 ± 0.02 inch)    

100.6 ± .5 mm (3.96 ± 0.02 inch)    
Dimension (6)    
222.25 mm (8.75 inch)    

222.25 mm (8.75 inch)    

222 mm (8.74 inch)    

222 mm (8.74 inch)    

222 mm (8.74 inch)    

222 mm (8.74 inch)    
Dimension (7)    
148 mm (5.8 inch)    

148 mm (5.8 inch)    
-     -     -     -    
Weight    
8.7 kg (19.2 lb)    

8.8 kg (19.4 lb)    

10.2 kg (22.5 lb)    

10.2 kg (22.5 lb)    

10.2 kg (22.5 lb)    

10.2 kg (22.5 lb)    
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