Isuzu N-Series. Service manual — part 628
ENGINE ELECTRICAL 6D-5
Removal and Installation of the Battery
Removal
1. All switches should be in the “OFF” position.
2. Disconnect the battery ground cable. (1)
3. Disconnect the battery positive cable. (2)
4. Disconnect the battery cable.
Caution:
It is important that the battery ground cable be discon-
nected first.
Disconnecting the battery positive cable first can result
in a short circuit.
Installation
To install the battery, follow the removal procedure in
the reverse order, noting the following points:
1. Make sure that the rod is hooked on the body side.
Main Data and Specifications
N6A3488E
Model
(JIS)
115E41R-MF
130E41R-MF
95D31R-MF
80D26R-MF
Voltage
(V)
12
12
12
12
Cold-Cranking Performance
(Amp)
651
799
622
582
Reserve Capacity
(Min)
212
229
159
133
Load Test
(Amp)
325
400
310
290
Fast Charge Maximum Amperage
(Amp)
20
20
20
20
BCI Group No.
—
—
27
24
Overall Dimension L
×W×H
(mm)
410
×178×213
410
×178×213
—
—
6D-6 ENGINE ELECTRICAL
STARTING SYSTEM
General Description
Starting Circuit
The cranking system consists of a battery, starter, starter switch, starter relay, etc. and these main components are
connected as shown in Figure. For details of the starting circuit.
Starter
The starting system employs a magnetic type reduction starter in which the motor shaft is also used as a pinion shaft.
When the starter switch is turned on, the contacts of magnetic switch are closed, and the armature rotates.
At the same time, the plunger is attracted, and the pinion is pushed forward by the shift lever to mesh with ring gear.
Then, the ring gear runs to start the engine. When the engine starts and the starter switch is turned off, the plunger
returns, the pinion is disengaged from ring gear, and the armature stops rotation. When the engine speed is higher
than the pinion, the pinion idles, so that the armature is not driven.
Legend
1. Starter motor
7. Relay; starter
2. Hold coil
8. “50” terminal
3. Contacts
9. “30” terminal
4. Pinion clutch
10. Battery
5. Pull in coil
11. Starter switch
6. Mognetic switch
N6A3489E
ENGINE ELECTRICAL 6D-7
Starting Circuit
For 4JB1, 4JB1-TC
N6A3490E
6D-8 ENGINE ELECTRICAL
Starting Circuit
For 4JH1
N6A3796E
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