Suzuki Grand Vitara JB627. Manual - part 114

1I-10 Starting System: 

Starting Motor Inspection

S6JB0B1906004

Plunger
Inspect plunger for wear. Replace if necessary.

Magnetic Switch
Push in plunger and release it. The plunger should 
return quickly to its original position. Replace if 
necessary.

Pull-in coil open circuit test

Check for continuity across magnetic switch “S” terminal 
and “M” terminal. If no continuity exists, coil is open and 
should be replaced.

Hold-in coil open circuit test
Check for continuity across magnetic switch “S” terminal 
and coil case. If no continuity exists, coil is open and 
should be replaced.

Armature Shaft Bush
Inspect bush for wear or damage. Replace if necessary.

Brush
• Check brushes for wear.

Measure length of brushes and if below limit, replace 
brush.

Brush length
Standard: 12.3 mm (0.48 in.)
Limit: 5.5 mm (0.22 in.)

• Install brushes to each brush holder and check for 

smooth movement.

IYSQ01190027-01

IYSQ01190028-01

IYSQ01190029-01

IYSQ01190030-01

IYSQ01190031-01

IYSQ01190032-01

Starting System:  1I-11

Brush Spring
Inspect brush springs for wear, damage or other 
abnormal conditions. Replace if necessary.

Brush Holder
• Check movement of brush in brush holder. If brush 

movement within brush holder is sluggish, check 
brush holder for distortion and sliding faces for 
contamination. Clean or correct as necessary.

• Check for continuity across brush positive terminal (1) 

and grounded brush holder (2). If continuity exists, 
brush holder is grounded due to defective insulation 
and should be replaced.

Armature
• Inspect commutator for dirt or burn. Correct with 

sandpaper or lathe, if necessary.

• Check commutator for uneven wear with armature (1) 

supported on V-blocks (2). If deflection of dial gauge 
pointer exceeds limit, repair or replace.

NOTE
Below specification presupposes that 
armature is free from bend. Bent armature 
must be replaced.

 

Commutator out of round
Standard: 0.05 mm (0.002 in.) or less
Limit: 0.4 mm (0.016 in.)

• Inspect commutator for wear. If diameter is below 

limit, replace armature.

Commutator outside diameter
Standard: 29.4 mm (1.16 in.)
Limit: 28.8 mm (1.13 in.)

• Inspect commutator for insulator depth. Correct or 

replace if below limit.

Commutator insulator depth “a”
Standard: 0.5 mm (0.020 in.)
Limit: 0.2 mm (0.008 in.)

2

1

I6JB01190017-01

IYSQ01190034-01

3. Magnetic stand
4. Dial gauge

[A]: Correct

1. Commutator segment

[B]: Incorrect

2. Insulator

IYSQ01190035-01

IYSQ01190036-01

I5JA01190001-01

1I-12 Starting System: 

Ground test
Check commutator and armature core. If there is 
continuity, armature is grounded and must be replaced.

Open circuit test
Check for continuity between segments. If there is no 
continuity at any test point, there is an open circuit and 
armature must be replaced.

Gears
Inspect internal gear and planetary gears for wear, 
damage or other abnormal conditions. Replace if 
necessary.

Pinion and Over-Running Clutch
• Inspect pinion for wear, damage or other abnormal 

conditions. Check that clutch locks up when turned in 
direction of drive and rotates smoothly in reverse 
direction. Replace if necessary.

• Inspect spline teeth for wear or damage. Replace if 

necessary. Inspect pinion for smooth movement.

Front Housing Bush
Inspect bush for wear or damage. Replace if necessary.

IYSQ01190038-01

IYSQ01190039-01

IYSQ01190040-01

IYSQ01190041-01

IYSQ01190042-01

IYSQ01190043-01

Starting System:  1I-13

Specifications

Starting Motor Specifications

S6JB0B1907001

1.4 kW Type

Tightening Torque Specifications

S6JB0B1907002

NOTE
The specified tightening torque is also described in the following.
“Starting Motor Components”

 

Reference:
For the tightening torque of fastener not specified in this section, refer to “Fastener Information in Section 0A”.

Special Tools and Equipment

Recommended Service Material

S6JB0B1908001

NOTE
Required service material is also described in the following.
“Starting Motor Components”

 

Special Tool

S6JB0B1908002

Voltage

12 volts

Output

1.4 kW

Rating

30 seconds

Direction of rotation

Clockwise as viewed from pinion side

Brush length

12.3 mm (0.48 in.)

Number of pinion teeth

8

Performance

Condition

Guarantee

Around 
at 20 

°C (68 °F)

No load characteristic

11.0 V

90 A maximum
2000 rpm minimum

Load characteristic

7.5 V

300 A

11 N

⋅m (1.1 kgf-m, 8.0 lb-ft) minimum

840 rpm minimum

Locked characteristic

3.0 V

860 A maximum
20 N

⋅m (2.0 kgf-m, 14.5 lb-ft) minimum

Magnetic switch operating voltage

8 volts maximum

Fastening part

Tightening torque

Note

N

⋅m

kgf-m

lb-ft

Starting motor mount bolt

55

5.5 

40.0

)

Starting motor battery cable nut

11

1.1 

8.0

)

09900–06107
Snap ring pliers (opening 
type)
)