NISSAN LATIO 2009 Service Repair Manual

AT-276< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
1. Drive manual shaft oil seal into transaxle case using a drift [com- mercial service tool: 22 mm (0.87 in) dia.].
CAUTION:
• Do not reuse manual shaft oil seal.
• Apply ATF to outer surface of manual shaft oil seal.
2. Install parking rod to parking rod plate.
3. Insert manual shaft (1) to transaxle case, and install manual plate (2) to manual shaft (1).
4. Install parking rod plate (with parking rod) (3) to manual shaft (1).
5. Align groove of manual shaft and hole of transaxle case using a pin punch (A) [commercial service tool: 2 mm (0.08 in) dia.].
6. Drive retaining pin of manual shaft into transaxle case using Tool (B).
CAUTION:
Do not reuse retaining pin.
7. Set parking rod plate (1) onto manual shaft, and drive retaining pin (2) of parking rod plate (1) using tool (A).
CAUTION:
The retaining pin end should protrude approx. 3mm (0.12
in) (B) from the outer surface of parking rod plate (1).
8. Set manual plate (1) onto manual shaft, and drive retaining pin (2) of manual plate (1) using tool (A).
CAUTION:
The retaining pin end should protrude approx. 3mm (0.12
in) (B) from the outer surface of manual plate (1). SAT081D
SCIA7005E
Tool number: ST23540000 (J-25689-A)
SCIA7006E
Tool number: ST23540000 (J-25689-A)
SCIA7107E
Tool number: ST23540000 (J-25698-A)
SCIA7108E

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9. Install detent spring on transaxle case.
10. Tighten detent spring bolt to the specified torque. Refer to AT-274, " Manual Shaft " .
Oil Pump INFOID:0000000004305516
COMPONENTS
DISASSEMBLY 1. Remove seal rings (1) from oil pump assembly (2).

SAT092D
SCIA2840E

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• Measure side clearance of inner gear and outer gear in at least
four places around each outside edge. Clearances measured val-
ues should be within the specified clearance.
• If clearance is less than standard, select inner gear and outer gear as a set so that clearance is withi n specifications. Refer to “Parts
Information” for the inner gear and outer gear selection.
• If clearance is more than standard, replace whole oil pump assem-
bly except oil pump cover.
• Measure clearance between outer gear and oil pump housing.
• If not within allowable limit, replace whole oil pump assembly except oil pump cover.
Seal Ring Clearance • Measure clearance between seal ring and ring groove.
• If not within allowable limit, replace oil pump cover assembly.
ASSEMBLY Standard clearance: Refer to
AT-377, " Oil Pump " .
Oil Pump " .
Oil Pump " .

AT-280< SERVICE INFORMATION >
REPAIR FOR COMPONENT PARTS
1. Install oil pump housing oil seal on oil pump housing.
CAUTION:
• Do not reuse oil pump housing oil seal.
• Apply ATF to outer surface of oil pump housing oil seal.
2. Install inner gear and outer gear on oil pump housing. CAUTION:
Be careful with the direction of inner gear.
3. Install oil pump cover on oil pump housing.
a. Wrap masking tape around splines of oil pump cover assembly to protect seal. Position oil pump cover assembly on oil pump
housing assembly, then remove masking tape.
b. Tighten oil pump cover bolts in the order as shown, and then tighten them to the specified torque in the same order. Refer to
AT-277, " Oil Pump " .
4. Install seal rings (1) to oil pump assembly (2) carefully after packing ring groove with petroleum jelly.
CAUTION:
Do not spread gap of seal ri ngs (1) excessively while install-
ing. The seal rings (1) may be deformed.
Control Valve Assembly INFOID:0000000004305517
COMPONENTS Tool number : ST33400001 (J-26082) SCIA5386E
SAT092D
SAT101D
SCIA7016E

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DISASSEMBLY
Place control valve assembly with control valve upper body (1) side
down. Remove bolts (A) to (G), reamer bolts (F), nuts and support
plates (4) according to the following procedures. Separate control
valve upper body (1), control valve inter body (2) and control valve
lower body (3). 1. Pilot filter 2. Control valve upper body 3. Steel ball
4. Separating plate 5. Control valve inter body 6. Steel ball
7. Support plate 8. Separating plate 9. Control valve lower body
10. Line pressure relief valve spring 11. Check ball 12. Torque converter pressure holding spring
13. Solenoid valve assembly 14. Terminal body 15. O-ring
16. O-ring 17. O-ring 18. Oil strainer SCIA7058E

SCIA7008E
ATL0020D

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5. Remove control valve lower body (1) from control valve inter
body (2).
(3): Control valve upper body
6. Turn over control valve lower body (1).
7. Remove bolts (E), support plates (2) and separating plate (3) from control valve lower body (1).
8. Remove check balls (1), line pressure relief valve springs (2) and torque converter pressure holding spring (3) from control
valve lower body (4).
CAUTION:
Be careful not to lose check ba lls (1), line pressure relief
valve springs (2) and torque converter pressure holding
spring (3).
9. Remove control valve inter body from control valve upper body.
10. Remove pilot filter (1) from control valve upper body (2).
11. Remove separating plate from control valve upper body (2).

SAT871J
SCIA4979E

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Check wire netting of oil strainer for damage. Replace if necessary.
Shift Solenoid Valves “A and B”, Line Pressure Solenoid Valve, Torque Conv erter Clutch Solenoid Valve and Overrun
Clutch Solenoid Valve
Measure resistance.
• For shift solenoid valve A, refer to AT-142, " Component Inspec-
tion " .
• For shift solenoid valve B, refer to AT-147, " Component Inspec-
tion " .
• For line pressure solenoid valve, refer to AT-138, " Component
Inspection " .
• For torque converter clutch solenoid valve, refer to AT-127, " Com-
ponent Inspection " .
• For overrun clutch solenoid valve, refer to AT-152, " Component
Inspection " .
A/T Fluid Temperature Sensor Measure resistance.
• For A/T fluid temperature sensor, refer to AT-161, " Component
Inspection " .
Line Pressure Relief Valve Springs and To rque Converter Pressure Holding Spring
• Check each spring for damage or deformation. Also measure free length and outer diameter. Refer to AT-374, " Control Valves " .
• Replace springs if deformed or fatigued.
ASSEMBLY SCIA3485E
SAT138D