Doosan D55C-5 - Mast, Carriage, Lift Chains, & Attachments Service

D439E Service Manual 3. Engine Electrical System (D439E)
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3. Engine Electrical System (D439E)
General
Specification
Starting System
Item Specification
Type Pro-engaged drive (Assistance drive)
Rated output 24V-5.0 KW
No. of pinion teeth 9
Rotation direction Clockwise from pinion side
No of ring gear teeth 114
Input angle of pinion 20°
Center distance between ring gear and pinion 187.2 mm
Terminal voltage 23 V
Max. Current 95A, MAX
Min. RPM 3,300 rpm, MIN
No load test
Magnetic switch
operating voltage
Below 16 V
Terminal voltage 18.5 V
Terminal current 400 A
Load test
Min RPM 2.6kgf.m / 1,250rpm, MIN
Terminal voltage 9 V
Max. Current 1,400 A
Starter
Characteristic of
assurance output
Max rotation force 7.0 kgf.m, MIN
Charging System
Item Specification
Type 3 phase alternate current commutator type
Rated output 24 V-50 A
Rated RPM 5,000rpm
RPM in use 8,000rpm
Regulator type IC regulator
Alternator
Adjusted regulator voltage [at 20℃] 28~29 V