Suzuki Grand Vitara JB627. Service 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)
)
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