104741-4250 ZEXEL 9 460 612 978 BOSCH INJECTION-PUMP ASSEMBLY 9460612978 1047414250

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Information injection-pump assembly

BOSCH 9 460 612 978 9460612978

ZEXEL 104741-4250 1047414250

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Buy INJECTION-PUMP ASSEMBLY 104741-4250 zexel genuine, new aftermarket engine parts with delivery

Components :

0.	INJECTION-PUMP ASSEMBLY	104741-4250
1.	_
2.	FUEL INJECTION PUMP	104641-4250
3.	NUMBER PLATE	146954-1200
4.	_
5.	CAPSULE
6.	ADJUSTING DEVICE
7.	NOZZLE AND HOLDER ASSY	105118-5672
8.	Nozzle and Holder	16600-45K02
9.	Open Pre:MPa(Kqf/cm2)	15.7{160}
10.	NOZZLE-HOLDER	105048-3840
11.	NOZZLE	105017-2080

Scheme ###:

1/6.	[1]	146601-0700	PACKING RING
6.	[1]	146100-0520	SUPPLY PUMP
9.	[1]	146103-0000	COVER
10.	[2]	139104-0000	FLAT-HEAD SCREW
12.	[1]	146200-0320	DRIVE SHAFT
12/1.	[1]	146200-0300	DRIVE SHAFT
12/2.	[1]	146201-0000	WOODRUFF KEY
12/3.	[2]	146202-0100	DAMPER
12/4.	[1]	146203-0000	TOOTHED GEAR
17.	[1]	146204-0000	PLAIN WASHER
20.	[1]	146210-0120	ROLLER SET
24.	[1]	146303-0000	BEARING PIN
25.	[1]	146304-0000	BEARING PIN
26.	[1]	146305-0000	CLAMPING BAND
27.	[1]	146205-0000	SLOTTED WASHER
29.	[1]	146220-0420	CAM PLATE
30.	[1]	146600-0800	O-RING
31.	[1]	146300-0100	PUMP PLUNGER
32.	[1]	146301-0200	SLIDING PIECE
33.	[1]	146603-0700	SHIM D17.5&7.5T0.60
34.	[1]	146302-9700	COMPRESSION SPRING
34B.	[1]	146302-9600	COMPRESSION SPRING
35/1.	[0]	146603-0700	SHIM D17.5&7.5T0.60
35/1.	[0]	146603-0800	SHIM D17.5&7.5T0.70
35/1.	[0]	146603-0900	SHIM D17.5&7.5T0.90
35/1.	[0]	146603-1000	SHIM D17.5&7.5T1.00
35/1.	[0]	146603-1100	SHIM D17.5&7.5T1.20
35/1.	[0]	146603-3600	SHIM D17.5&7.5T2.40
36.	[1]	146600-0800	O-RING
37.	[1]	146310-0700	COVER
38.	[2]	146620-5000	BLEEDER SCREW
39.	[1]	146310-0100	COVER
40.	[2]	146620-5000	BLEEDER SCREW
43.	[1]	146230-0000	SHIM
44.	[1]	146230-0100	PLAIN WASHER
45.	[1]	146231-0001	SLOTTED WASHER
47.	[2]	146233-0000	SLOTTED WASHER
48/1.	[1]	146603-0000	SHIM D17.0&5.2T0.50
48/1.	[1]	146603-0100	SHIM D17.0&5.2T0.80
48/1.	[1]	146603-0200	SHIM D17.0&5.2T1.00
48/1.	[1]	146603-0300	SHIM D17.0&5.2T1.20
48/1.	[1]	146603-0400	SHIM D17.0&5.2T1.50
48/1.	[1]	146603-0500	SHIM D17.0&5.2T1.80
48/1.	[1]	146603-0600	SHIM D17.0&5.2T2.00
48/1.	[1]	146690-1400	SHIM D17&5.2T0.9
48/1.	[1]	146690-1500	SHIM D17&5.2T1.1
48/1.	[1]	146690-1600	SHIM D17&5.2T1.3
48/1.	[1]	146690-1700	SHIM D17&5.2T1.4
48/1.	[1]	146690-1800	SHIM D17&5.2T1.6
48/1.	[1]	146690-1900	SHIM D17&5.2T1.7
48/1.	[1]	146690-5800	SHIM
48/1.	[1]	146690-5900	SHIM
48/1.	[1]	146690-6000	SHIM
48/1.	[1]	146690-6100	SHIM
48/1.	[1]	146690-6200	SHIM
48/1.	[1]	146690-6300	SHIM
48/1.	[1]	146690-6400	SHIM
48/1.	[1]	146690-6500	SHIM
48/1.	[1]	146690-6600	SHIM
48/1.	[1]	146690-6700	SHIM
48/1.	[1]	146690-6800	SHIM
48/1.	[1]	146690-6900	SHIM
48/1.	[1]	146690-7000	SHIM
48/1.	[1]	146690-7100	SHIM
48/1.	[1]	146690-7200	SHIM
48/1.	[1]	146690-7300	SHIM
48/1.	[1]	146690-7400	SHIM
48/1.	[1]	146690-7500	SHIM
48/1.	[1]	146690-7800	SHIM
49.	[2]	146234-0020	GUIDE PIN
50.	[1]	146402-0820	HYDRAULIC HEAD
50.	[1]	146402-0820	HYDRAULIC HEAD
50.	[1]	146402-0820	HYDRAULIC HEAD
51.	[1]	146600-0000	O-RING
52/1.	[1]	146420-0000	SHIM D9.5&3.0T1.90
52/1.	[1]	146420-0100	SHIM D9.5&3.0T1.92
52/1.	[1]	146420-0200	SHIM D9.5&3.0T1.94
52/1.	[1]	146420-0300	SHIM D9.5&3.0T1.96
52/1.	[1]	146420-0400	SHIM D9.5&3.0T1.98
52/1.	[1]	146420-0500	SHIM D9.5&3.0T2.00
52/1.	[1]	146420-0600	SHIM D9.5&3.0T2.02
52/1.	[1]	146420-0700	SHIM D9.5&3.0T2.04
52/1.	[1]	146420-0800	SHIM D9.5&3.0T2.06
52/1.	[1]	146420-0900	SHIM D9.5&3.0T2.08
52/1.	[1]	146420-1000	SHIM D9.5&3.0T2.10
52/1.	[1]	146420-1100	SHIM D9.5&3.0T2.12
52/1.	[1]	146420-1200	SHIM D9.5&3.0T2.14
52/1.	[1]	146420-1300	SHIM D9.5&3.0T2.16
52/1.	[1]	146420-1400	SHIM D9.5&3.0T2.18
52/1.	[1]	146420-1500	SHIM D9.5&3.0T2.20
52/1.	[1]	146420-1600	SHIM D9.5&3.0T2.22
52/1.	[1]	146420-1700	SHIM D9.5&3.0T2.24
52/1.	[1]	146420-1800	SHIM D9.5&3.0T2.26
52/1.	[1]	146420-1900	SHIM D9.5&3.0T2.28
52/1.	[1]	146420-2000	SHIM D9.5&3.0T2.30
52/1.	[1]	146420-2100	SHIM D9.5&3.0T2.32
52/1.	[1]	146420-2200	SHIM D9.5&3.0T2.34
52/1.	[1]	146420-2300	SHIM D9.5&3.0T2.36
52/1.	[1]	146420-2400	SHIM D9.5&3.0T2.38
52/1.	[1]	146420-2500	SHIM D9.5&3.0T2.40
52/1.	[1]	146420-2600	SHIM D9.5&3.0T2.42
52/1.	[1]	146420-2700	SHIM D9.5&3.0T2.44
52/1.	[1]	146420-2800	SHIM D9.5&3.0T2.46
52/1.	[1]	146420-2900	SHIM D9.5&3.0T2.48
52/1.	[1]	146420-3000	SHIM D9.5&3.0T2.50
52/1.	[1]	146420-3100	SHIM D9.5&3.0T2.52
52/1.	[1]	146420-3200	SHIM D9.5&3.0T2.54
52/1.	[1]	146420-3300	SHIM D9.5&3.0T2.56
52/1.	[1]	146420-3400	SHIM D9.5&3.0T2.58
52/1.	[1]	146420-3500	SHIM D9.5&3.0T2.60
52/1.	[1]	146420-3600	SHIM D9.5&3.0T2.62
52/1.	[1]	146420-3700	SHIM D9.5&3.0T2.64
52/1.	[1]	146420-3800	SHIM D9.5&3.0T2.66
52/1.	[1]	146420-3900	SHIM D9.5&3.0T2.68
52/1.	[1]	146420-4000	SHIM D9.5&3.0T2.70
52/1.	[1]	146420-4100	SHIM D9.5&3.0T2.72
52/1.	[1]	146420-4200	SHIM D9.5&3.0T2.74
52/1.	[1]	146420-4300	SHIM D9.5&3.0T2.76
52/1.	[1]	146420-4400	SHIM D9.5&3.0T2.78
52/1.	[1]	146420-4500	SHIM D9.5&3.0T2.80
52/1.	[1]	146420-4600	SHIM D9.5&3.0T2.82
52/1.	[1]	146420-4700	SHIM D9.5&3.0T2.84
52/1.	[1]	146420-4800	SHIM D9.5&3.0T2.86
52/1.	[1]	146420-4900	SHIM D9.5&3.0T2.88
52/1.	[1]	146420-5000	SHIM D9.5&3.0T2.90
52/1.	[1]	146420-5100	SHIM D9.5&3.0T1.74
52/1.	[1]	146420-5200	SHIM D9.5&3.0T1.76
52/1.	[1]	146420-5300	SHIM D9.5&3.0T1.78
52/1.	[1]	146420-5400	SHIM D9.5&3.0T1.80
52/1.	[1]	146420-5500	SHIM D9.5&3.0T1.82
52/1.	[1]	146420-5600	SHIM D9.5&3.0T1.84
52/1.	[1]	146420-5700	SHIM D9.5&3.0T1.86
52/1.	[1]	146420-5800	SHIM D9.5&3.0T1.88
54.	[4]	146433-0100	GASKET D12&6.4T1.00
55.	[4]	146430-4320	DELIVERY-VALVE ASSEMBLY
56.	[4]	146432-0200	COMPRESSION SPRING
58.	[4]	146440-0720	FITTING
60.	[3]	139106-0100	FLAT-HEAD SCREW
67.	[1]	146820-5520	GOVERNOR COVER
67/1.	[1]	146805-2120	GOVERNOR COVER
67/2.	[1]	146515-0320	CONTROL SHAFT
67/3.	[1]	146600-0100	O-RING
67/4.	[2]	139310-0200	PLAIN WASHER
67/4.	[2]	139310-0200	PLAIN WASHER
67/5.	[1]	146536-9910	CONTROL LEVER
67/5B.	[1]	146539-0010	CONTROL LEVER
67/6.	[2]	014110-6440	LOCKING WASHER
67/6.	[2]	014110-6440	LOCKING WASHER
67/7.	[1]	013020-6040	UNION NUT M6P1H5
67/8.	[1]	146515-1820	LEVER SHAFT
67/9.	[1]	146592-0400	COILED SPRING
67/10.	[1]	146600-0200	O-RING
67/11.	[1]	146602-0100	PLAIN WASHER D14&10.1T1.50
67/12.	[1]	146540-4000	CONTROL LEVER
67/12B.	[1]	146540-4100	CONTROL LEVER
67/13.	[1]	146621-1700	UNION NUT
67/14.	[1]	146621-1700	UNION NUT
67/15.	[1]	146526-3400	BLEEDER SCREW
67/16.	[1]	146526-3400	BLEEDER SCREW
67/18.	[1]	146587-8000	COILED SPRING
67/19.	[1]	146541-3000	BUSHING
67/21.	[1]	146592-1300	COILED SPRING
67/22.	[1]	146541-3100	SLOTTED WASHER
67/25.	[2]	013020-6040	UNION NUT M6P1H5
67/25.	[2]	013020-6040	UNION NUT M6P1H5
67/26.	[1]	139006-0200	BLEEDER SCREW
67/78.	[1]	146600-4400	SEAL RING
67/200.	[1]	139308-0300	PLAIN WASHER
67/201.	[1]	146545-3400	THREADED PIN L53.00
67/201B.	[1]	146545-3500	THREADED PIN L55.00
67/201C.	[1]	146545-3600	THREADED PIN L57.00
67/202.	[1]	139208-0900	UNION NUT
67/203.	[1]	146600-1200	O-RING
95.	[1]	146565-9920	FULCRUM LEVER
104.	[2]	146568-0000	SLOTTED SPRING PIN
105.	[2]	026508-1140	GASKET D11.4&8.2T1
106.	[2]	146588-0500	COILED SPRING
107.	[1]	146569-0300	UNION NUT
108.	[1]	146570-0100	GOVERNOR SHAFT
109.	[1]	146600-0400	O-RING
110/1.	[1]	146571-0000	SHIM D20.2&8.3T1.05
110/1.	[1]	146571-0100	SHIM D20.2&8.3T1.25
110/1.	[1]	146571-0200	SHIM D20.2&8.3T1.45
110/1.	[1]	146571-0300	SHIM D20.2&8.3T1.65
110/1.	[1]	146571-0400	SHIM D20.2&8.3T1.85
110/1.	[1]	146571-0500	SHIM D20.2&8.3T1.15
110/1.	[1]	146571-0600	SHIM D20.2&8.3T1.35
110/1.	[1]	146571-0700	SHIM D20.2&8.3T1.55
110/1.	[1]	146571-0800	SHIM D20.2&8.3T1.75
111.	[1]	146602-0600	PLAIN WASHER D20&8.4T1.40
112.	[1]	146572-0020	FLYWEIGHT ASSEMBLY
114.	[1]	146602-2600	PLAIN WASHER D34&13T1.0
115.	[1]	146575-2000	SLIDING SLEEVE
116.	[1]	146576-0200	CAP
117/1.	[1]	146577-1800	PLUG L2.10
117/1.	[1]	146577-1900	PLUG L2.30
117/1.	[1]	146577-2000	PLUG L2.50
117/1.	[1]	146577-2100	PLUG L2.70
117/1.	[1]	146577-2200	PLUG L2.90
117/1.	[1]	146577-2300	PLUG L3.10
117/1.	[1]	146577-2400	PLUG L3.30
117/1.	[1]	146577-2500	PLUG L3.50
117/1.	[1]	146577-2600	PLUG L3.70
117/1.	[1]	146577-2700	PLUG L3.90
117/1.	[1]	146577-2800	PLUG L4.10
117/1.	[1]	146577-2900	PLUG L4.30
117/1.	[1]	146577-3000	PLUG L4.50
117/1.	[1]	146577-3100	PLUG L4.70
117/1.	[1]	146577-3200	PLUG L4.90
117/1.	[1]	146577-3300	PLUG L5.10
117/1.	[1]	146577-6700	PLUG L2.2
117/1.	[1]	146577-6800	PLUG L2.4
117/1.	[1]	146577-6900	PLUG L2.6
117/1.	[1]	146577-7000	PLUG L2.8
117/1.	[1]	146577-7100	PLUG L3.0
117/1.	[1]	146577-7200	PLUG L3.2
117/1.	[1]	146577-7300	PLUG L3.4
117/1.	[1]	146577-7400	PLUG L3.6
117/1.	[1]	146577-7500	PLUG L3.8
117/1.	[1]	146577-7600	PLUG L4.0
117/1.	[1]	146577-7700	PLUG L4.2
117/1.	[1]	146577-7800	PLUG L4.4
117/1.	[1]	146577-7900	PLUG L4.6
117/1.	[1]	146577-8000	PLUG L4.8
117/1.	[1]	146577-8100	PLUG L5.0
117/1.	[1]	146877-0000	PLUG L5.2
117/1.	[1]	146877-0100	PLUG L5.3
117/1.	[1]	146877-0200	PLUG L5.4
117/1.	[1]	146877-0300	PLUG L5.5
117/1.	[1]	146877-4700	PLUG
117/1.	[1]	146877-4800	PLUG
117/1.	[1]	146877-4900	PLUG
117/1.	[1]	146877-5000	PLUG
120.	[1]	146579-2220	RETAINING PIN
122.	[1]	146580-3700	GOVERNOR SPRING
123.	[4]	139106-0200	FLAT-HEAD SCREW
130.	[1]	146421-0320	CAPSULE
130/2.	[1]	026508-1140	GASKET D11.4&8.2T1
130/3.	[1]	146422-0300	BLEEDER SCREW
130/4.	[1]	146600-0500	O-RING
133.	[1]	146600-0600	O-RING
134.	[1]	146600-0700	O-RING
135.	[1]	146110-0220	CONTROL VALVE
135/5.	[1]	146114-0000	SPRING WASHER
136.	[1]	146120-0120	OVER FLOW VALVE
200.	[1]	146206-0100	COILED SPRING
230.	[1]	146930-7620	BRACKET
231.	[1]	139006-4600	BLEEDER SCREW
236.	[1]	139006-4800	BLEEDER SCREW
237.	[1]	146620-0200	HEX-SOCKET-HEAD CAP SCREW
240.	[1]	146650-1320	PULLING ELECTROMAGNET
240/8.	[1]	146600-1700	O-RING
242.	[1]	146658-7420	WIRE
243.	[1]	146621-1000	UNION NUT
246.	[1]	027412-2440	EYE BOLT
800S.	[1]	146019-8020	PUMP HOUSING
800S/1/6.	[1]	146601-0700	PACKING RING
804S.	[1]	146232-0320	COMPRESSION SPRING
805S.	[1]	146574-0320	PARTS SET
810S.	[1]	146600-1120	REPAIR SET
835S.	[1]	146598-1000	CAP
836S/1.	[1]	146598-0600	CAP L18
836S/1.	[1]	146598-0700	CAP L21
836S/1.	[1]	146598-0800	CAP L24
836S/1.	[1]	146598-0900	CAP L27
906.	[1]	146954-1200	NAMEPLATE

Include in #2:

104741-4250 as INJECTION-PUMP ASSEMBLY

Cross reference number

BOSCH 9 460 612 978 9460612978

ZEXEL 104741-4250 1047414250

Zexel num

Bosch num

Firm num

Name

104741-4250
104741-4251

9 460 612 978

INJECTION-PUMP ASSEMBLY
* K

Calibration Data:

Adjustment conditions

Test oil
1404 Test oil ISO4113orSAEJ967d

Test oil temperature degC 45 45 50

Nozzle 105780-0060

Bosch type code NP-DN0SD1510

Nozzle holder 105780-2150

Opening pressure MPa 13 13 13.3

Opening pressure kgf/cm2 133 133 136

Injection pipe 157805-7320

Injection pipe
Inside diameter - outside diameter - length (mm) mm 2-6-450

Joint assembly 157641-4720

Tube assembly 157641-4020

Transfer pump pressure kPa 20 20 20

Transfer pump pressure kgf/cm2 0.2 0.2 0.2

Direction of rotation (viewed from drive side)
Right R

Injection timing adjustment

Pump speed r/min 800 800 800

Average injection quantity mm3/st. 54.1 53.6 54.6

Difference in delivery mm3/st. 4

Basic *

Oil temperature degC 50 48 52

Injection timing adjustment_02

Pump speed r/min 300 300 300

Average injection quantity mm3/st. 38.8 38.8 38.8

Oil temperature degC 48 46 50

Injection timing adjustment_03

Pump speed r/min 500 500 500

Average injection quantity mm3/st. 39.1 35.6 42.6

Oil temperature degC 48 46 50

Injection timing adjustment_04

Pump speed r/min 700 700 700

Average injection quantity mm3/st. 50.3 50.3 50.3

Oil temperature degC 50 48 52

Injection timing adjustment_05

Pump speed r/min 800 800 800

Average injection quantity mm3/st. 54.1 53.1 55.1

Difference in delivery mm3/st. 4.5

Basic *

Oil temperature degC 50 48 52

Injection timing adjustment_06

Pump speed r/min 1200 1200 1200

Average injection quantity mm3/st. 59.8 57.8 61.8

Oil temperature degC 50 48 52

Injection quantity adjustment

Pump speed r/min 1350 1350 1350

Average injection quantity mm3/st. 14.1 11.1 17.1

Basic *

Oil temperature degC 50 48 52

Injection quantity adjustment_02

Pump speed r/min 1500 1500 1500

Average injection quantity mm3/st. 5

Oil temperature degC 50 48 52

Injection quantity adjustment_03

Pump speed r/min 1350 1350 1350

Average injection quantity mm3/st. 14.1 10.6 17.6

Oil temperature degC 50 48 52

Governor adjustment

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 8.5 6.5 10.5

Difference in delivery mm3/st. 2

Basic *

Oil temperature degC 50 48 52

Governor adjustment_02

Pump speed r/min 250 250 250

Average injection quantity mm3/st. 33.5 27.5 39.5

Oil temperature degC 48 46 50

Governor adjustment_03

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 8.5 6 11

Difference in delivery mm3/st. 2.5

Basic *

Oil temperature degC 48 46 50

Timer adjustment

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 80 75 85

Basic *

Oil temperature degC 48 46 50

Remarks
Full

Timer adjustment_02

Pump speed r/min 100 100 100

Average injection quantity mm3/st. 80 75 85

Basic *

Oil temperature degC 48 46 50

Speed control lever angle

Pump speed r/min 350 350 350

Average injection quantity mm3/st. 0 0 0

Oil temperature degC 48 46 50

Remarks
Magnet OFF at idling position

Speed control lever angle_02

Pump speed r/min 250 250 250

Average injection quantity mm3/st. 5

Oil temperature degC 48 46 50

Remarks
Magnet OFF at full-load position

0000000901

Pump speed r/min 900 900 900

Overflow quantity cm3/min 340 210 470

Oil temperature degC 50 48 52

Stop lever angle

Pump speed r/min 900 900 900

Pressure kPa 265 236 294

Pressure kgf/cm2 2.7 2.4 3

Basic *

Oil temperature degC 50 48 52

Stop lever angle_02

Pump speed r/min 900 900 900

Pressure kPa 265 226 304

Pressure kgf/cm2 2.7 2.3 3.1

Basic *

Oil temperature degC 50 48 52

Stop lever angle_03

Pump speed r/min 1100 1100 1100

Pressure kPa 304 265 343

Pressure kgf/cm2 3.1 2.7 3.5

Oil temperature degC 50 48 52

0000001101

Pump speed r/min 900 900 900

Timer stroke mm 1.8 1.6 2

Basic *

Oil temperature degC 50 48 52

_02

Pump speed r/min 900 900 900

Timer stroke mm 1.8 1.4 2.2

Basic *

Oil temperature degC 50 48 52

_03

Pump speed r/min 1100 1100 1100

Timer stroke mm 3 2.4 3.6

Oil temperature degC 50 48 52

_04

Pump speed r/min 1350 1350 1350

Timer stroke mm 4.1 3.6 4.5

Oil temperature degC 50 48 52

0000001201

Max. applied voltage V 16 16 16

Test voltage V 25 24 26

Timing setting

K dimension mm 2.8 2.7 2.9

KF dimension mm 5 4.9 5.1

MS dimension mm 1.7 1.6 1.8

Pre-stroke mm 0.45 0.43 0.47

Control lever angle alpha deg. 25 21 29

Control lever angle beta deg. 37 32 42

Test data Ex:

0000001801 STOP LEVER ADJUSTMENT

Adjustment of the stop lever Adjust adjusting bolt (B) so that the starting injection quantity is within the standard. Fix using nut. (A) Adjusting nut (C) Starting injection quantity adjusting lever
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L=15.0~18.5mm

Information:

Fig. 5-Output TerminalStart engine and run at approximately 1500 rpm. Connect voltmeter negative lead to alternator ground terminal and connect positive lead to alternator auxiliary terminal (Fig. 4). Voltmeter should read 15.4 volts. Now move voltmeter positive lead to alternator output terminal (Fig. 5). Voltage reading should be 14.4 volts.If voltage at auxiliary terminal is 15.4 volts, while at the output terminal it is 12 volts or battery voltage, the isolation diode is open. Replace it. Test No. 4 - Field Draw Test (Key Switch Off)Detach regulator and let hang by red and black wires. DO NOT allow regulator to touch the output terminal. If test ammeter is not equipped with a 1/4-ohm resistor, a 1/4-ohm resistor should be connected in series with the ammeter to protect the meter.
Fig. 6-Field Terminal - Test 4Disconnect green field wire from field terminal. Connect ammeter from output terminal (2, Fig. 6) to field terminal (1). Current reading should be 2 to 2.5 amps. If less than this, check brushes and slip rings. Test No. 5 - Checking Alternator and Regulator With Regulator Disconnected (Key Switch On - Engine Running)Disconnect the regulator from the connector. Disconnect the green wire from the field terminal. Connect a jumper wire from the output terminal (2, Fig. 6) to the field terminal (1). Connect voltmeter negative lead to ground terminal and connect voltmeter positive lead to regulator terminal (3).Start engine and run at slow idle. This test isolates the defect to either the alternator or regulator.If voltage at regulator terminal rises to 15-16 volts now, when it did not with regulator connected in Test No. 3, then the regulator is defective and should be replaced.If voltage does not rise at regulator terminal and the field circuit was okay in Test No. 4, then the stator or rectifier diodes are defective. See Section 16, Group 1672 for testing diodes and stator. Test No. 6 - Alternator OutputIf not using JDST-23 tong-type ammeter, disconnect wire from alternator output terminal and connect ammeter from alternator output terminal 2, Fig. 6 to starter solenoid "Bat" terminal. Connect voltmeter negative lead to ground and connect positive lead to output terminal (2, Fig. 6). Connect a carbon pile resistor (turned off) to the battery.Run engine at approximately 1400 rpm. Use a master tachometer to measure rpm. Adjust carbon pile to obtain maximum alternator output at 13 to 15 volts. Ammeter should read 25 amps or more for the 35 amp alternator and 43 amps for the 55 amp alternator. Test No. 7 - Testing RegulatorThe regulator must be checked with an alternator that is in good condition. If the alternator is questionable, check it as previously instructed.Connect voltmeter with 0.1 volt accuracy to the alternator output terminal and ground terminal (Fig. 5). With charged batteries and the regulator brought to operating temperature (fifteen minutes operation), the voltage should be as specified for the surrounding air temperature. See chart below. If battery is partially discharged, it may be necessary to connect a