brake fluid NISSAN LATIO 2010 Service Owner's Guide

BR-10
< SERVICE INFORMATION >
BRAKE FLUID
3. With brake pedal depressed, loosen bleed valve to let the air out, and then tighten it immediately.
4. Repeat steps 2, 3 until no more air comes out.
5. Tighten bleed valve to specified torque. Refer to BR-25, "
Component" (front disc brake), BR-35, "Compo-
nent" (rear drum brake).
6. Following the steps 1 to 5 above, with master cylinder reservoir tank filled at least half way, bleed air from
the rear right, front left, rear left, and front right brake, in that order.
Revision: January 20102010 Versa

BR-12
< SERVICE INFORMATION >
BRAKE TUBE AND HOSE
• All tubes and hoses must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other part s when turning steering both clockwise and coun-
terclockwise.
• Brake tubes and hoses are an important safety part. Always disassemble the parts and retighten
their fittings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part
is detected.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted surfaces of body , immediately wipe them with cloth and then wash it away with
water.
• Do not bend or twist brake hose sharply, or strongly pull it.
• When removing components, cover brake line connect ions so that dirt, dust, or other foreign mat-
ters do not get in.
• Refill using recommended brake fluid. Refer to MA-14, "
Fluids and Lubricants".
• Never reuse drained brake fluid.
Front Brake Tube and HoseINFOID:0000000005396984
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill".
2. Using a flare nut wrench, remove brake tube from brake hose.
3. Remove union bolt and discard the copper washers. CAUTION:
Do not reuse copper washers
4. Remove brake hose from caliper assembly.
5. Remove lock plate, and remove brake hose.
INSTALLATION
1. Assemble union bolt and new copper washers on to brake hose. CAUTION:
Do not reuse copper washers
2. Position the L-shape metal fitting of the brake hose to the brake caliper assembly positioning hole.
3. Tighten union bolt to the specified torque. Refer to BR-11,
"Hydraulic Circuit".
4. Connect brake hose to brake tube, and temporarily tighten flare nut by hand as much as possible.
5. Secure brake hose and brake tube with lock plates.
6. Tighten flare nut to the specified torque with a suitable tool. Refer to BR-11, "
Hydraulic Circuit".
7. Bleed the air from the brake hydraulic system. Refer to BR-9, "
Bleeding Brake System".
Rear Brake Tube and HoseINFOID:0000000005396985
REMOVAL
1. Drain brake fluid. Refer to BR-9, "Drain and Refill".
2. Remove brake tube from brake hose using a suitable tool.
SFIA1118E
SFIA1137E
Revision: January 20102010 Versa

BRAKE TUBE AND HOSEBR-13
< SERVICE INFORMATION >
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3. Remove lock plate, and remove brake hose.
INSTALLATION
1. Connect brake hose to brake tube, and temporaril y tighten flare nut by hand as much as possible.
2. Secure it to the bracket with the lock plate.
3. Tighten flare nut to the specified torque using a suitable tool. Refer to BR-11, "
Hydraulic Circuit".
4. Bleed the air from the brake hydraulic system. Refer to BR-9, "
Bleeding Brake System".
Inspection After InstallationINFOID:0000000005396986
CAUTION:
• Always disassemble the parts and retighten their fitti ngs, if a brake fluid leak is detected. Replace
applicable part with a new one, if damaged part is detected.
• If leak is detected at the connections, retighten it or replace the damaged part.
1. Check brake hose, tube, and connections for fluid leak s, damage, twisting, deformation, contact with other
parts, and loose connections.
2. While depressing pedal under a force of 785 N (80 kg-f, 177 lb-f) with the engine running for approxi- mately 5 seconds, check for fluid leaks from each part of the brake hydraulic system.
SFIA1120E
SFIA1120E
Revision: January 20102010 Versa

BR-14
< SERVICE INFORMATION >
DUAL PROPORTIONING VALVE
DUAL PROPORTIONING VALVE
Removal and InstallationINFOID:0000000005396987
Removal
1. Remove cowl top . Refer to EI-22, "Removal and Installation".
2. Disconnect brake lines from dual proportioning valve. • Mark brake lines for installation.
3. Remove dual proportioning valve bolt and dual proportioning valve.
4. Remove two bolts and bracket.
Installation
Installation is in the reverse order of removal.
• When installing brake lines to the dual proportioning valve, tighten to specifications. Refer to BR-11,
"Hydraulic Circuit".
InspectionINFOID:0000000005396988
CAUTION:
• Carefully monitor brake fluid level at master cylinder.
• Use the recommended new brake fluid. Refer to MA-14, "
Fluids and Lubricants".
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on paint areas, wash it away with water immediately.
1. Connect a suitable brake fluid pressure gauge to air bleeders of front and rear brakes on either LH and RH side.
2. Bleed air from the brake fluid pressure gauge.
3. Check fluid pressure specific ation by depressing the brake pedal.
• If output pressure is out of specification, replace the dual proportioning valve.
Unit: kPa (kg/cm2, psi)
4. Bleed air after disconnecting the brake fluid pressure gauge. Refer to BR-9, "Bleeding Brake System".
SBR822BA
SBR823BA
Applied pressure
(Front brake) 7,355 (75, 1,067)
Output pressure
(Rear brake) 5,099 - 5,492 (52 - 56, 740 - 796)
Revision: January 20102010 Versa

BRAKE MASTER CYLINDERBR-15
< SERVICE INFORMATION >
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BRAKE MASTER CYLINDER
On-Board InspectionINFOID:0000000005396989
LEAK INSPECTION
• Check for leaks around the master cylinder installation surface, the reservoir tank installation surface, and all the brake tube connections.
Removal and InstallationINFOID:0000000005396990
CAUTION:
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, immediately wipe th em with cloth and wash it away with water.
REMOVAL
1. Drain the brake fluid. Refer to BR-9, "Drain and Refill".
2. Remove the battery. Refer to SC-7, "
Removal and Installation".
3. Remove the air duct. Refer to EM-135, "
Removal and Installation".
4. Remove the air cleaner. Refer to EM-135, "
Removal and Installation".
5. Disconnect the brake fluid level switch harness connector.
6. Disconnect the clutch hose from the reservoir tank, if equipped.
7. Remove the brake tube from master cylinder using a suitable tool.
8. Remove the master cylinder assembly nuts, and remove master cylinder assembly.
1. Reservoir tank 2. Master cylinder 3. Brake booster
4. Clevis 5. Spacer 6. Gasket
Up
AWFIA0530GB
Revision: January 20102010 Versa

BR-16
< SERVICE INFORMATION >
BRAKE MASTER CYLINDER
INSTALLATION
CAUTION:
• Refill using recommended brake fluid. Refer to MA-14, "
Fluids and Lubricants".
• Never reuse drained brake fluid.
• Check if the rod of primary piston has dust or scratches.
1. Install master cylinder to brake booster assembly, and tighten nuts to the specified torque.
CAUTION:
• Do not damage or strain rod of primary piston.
• Apply silicone grease for O-ring, primary piston rod andto inside of booster.
2. Install brake tube to master cylinder, and temporarily tighten the flare nuts on the brake tube to master cyl- inder by hand.
3. Install brake tube to brake hose, then tighten flare nut to the specified torque using a flare nut torque
wrench. Refer to BR-11, "
Hydraulic Circuit".
4. Connect the clutch hose to the reservoir tank, if equipped.
5. Connect brake fluid level switch harness connector.
6. Install the air cleaner. Refer to EM-135, "
Removal and Installation".
7. Install the air duct. Refer to EM-135, "
Removal and Installation".
8. Install the battery. Refer to SC-7, "
Removal and Installation".
9. Refill with new brake fluid and bleed the air from the brake hydraulic system. Refer toBR-9, "
Bleeding
Brake System".
Disassembly and AssemblyINFOID:0000000005396991
COMPONENTS
SFIA2614E
1. Reservoir cap2. Oil filter 3. Reservoir tank
4. Grommet 5. Piston stopper 6. Cylinder body
7. Pin 8. Brake fluid level switch connector 9. O-ring
10. Secondary piston assembly 11. Primary piston assembly 12. Plate
SFIA3094E
Revision: January 20102010 Versa

BRAKE MASTER CYLINDERBR-17
< SERVICE INFORMATION >
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DISASSEMBLY
CAUTION:
While working, cover primary piston rod wi th cloth to prevent it from being damaged.
1. Secure flange of cylinder body in vise as shown. CAUTION:
• Use copper plate or cloth to cover flange when securingin vise.
• When securing master cylinder assembly in a vise, be
sure not to over-tighten.
2. Using a pin-punch [commercial service tool: diameter approx. 4 mm (0.16 in)], remove pin from reservoir tank.
3. Remove master cylinder assembly from vise.
4. Remove reservoir tank and grommet from cylinder body.
5. While pushing primary piston, remove piston stopper through secondary tank boss hole in the cylinder body.
6. Remove snap ring with pushing primary piston. CAUTION:
Be careful not to pop out piston.
7. Holding rod of primary piston, remove primary piston assembly, plate and guide assembly by pulling straight to prevent piston
cup from being caught by the inner wall of cylinder.
8. Remove plate and guide assembly from primary piston. CAUTION:
Be careful not to damage rod from the inner wall of plate.
13. Guide assembly 14. Snap ring
: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease
:Brake fluid
WFIA0514E
WFIA0515E
WFIA0516E
BRA0561DWFIA0517E
Revision: January 20102010 Versa

BR-18
< SERVICE INFORMATION >
BRAKE MASTER CYLINDER
9. Tap flange using a soft block such as wood, and carefully pullsecondary piston assembly straight out to prevent cylinder inner
wall from being damaged.
INSPECTION AFTER DISASSEMBLY
Cylinder Body
• Check the inner wall of cylinder for damage, wear, corrosion, and pin holes. Replace cylinder body if neces-sary.
ASSEMBLY
CAUTION:
• Never use mineral oils such as kerosene or g asoline during the cleaning and assembly processes.
• Make sure that there is no foreign material such as dirt and dust on the inner wall of cylinder, piston,
and piston cup. Be careful not to damage parts with a service tool when assembling.
• Do not drop parts. If a part is dropped, do not use it.
1. Apply brake fluid to the inner wall of cylinder body, primary pis- ton assembly and secondary piston assembly.
2. Insert secondary piston and primary piston assembly into cylin- der body in this order.
CAUTION:
• Pay attention to the orientation of piston cup, and insert
straight to prevent cup from being caught by the inner
wall of cylinder.
• Always replace inner kit as a set.
3. Set the slit of secondary piston towards the piston stopper mounting hole of cylinder body while pushing in the primary pis-
ton. Then install the piston stopper through the slit of secondary
piston.
4. Insert plate and guide assembly into cylinder body. CAUTION:
• Be careful not to damage rod of primary piston.
• Pay attention to the orientation of guide assembly.
• Do not drop O-ring.
• Be careful the guide and/or plate are not inserted at an
angle to cylinder inner wall.
WFIA0518E
SBR089C
WFIA0516E
SFIA1469E
Revision: January 20102010 Versa

BRAKE MASTER CYLINDERBR-19
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5. Be careful not to damage rod of primary piston with the cloth. Then insert snap ring to cylinder body while pushing primary pis-
ton.
CAUTION:
Make sure that snap ring is securely engaged in cylinder
body inner diameter groove.
6. Apply brake fluid to a grommet, and press it into reservoir tank to install.
7. Install reservoir tank to cylinder body. CAUTION:
Pay attention to the orientation of reservoir tank. Make sure
reservoir tank is fully seated on master cylinder.
8. Secure flange of cylinder body in vise as shown. CAUTION:
• Use copper plate or cloth to cover flange for securing in
the vise.
• When securing master cylinder assembly in a vise, be sure not to over-tighten.
• Be sure to secure the flange part with the brake tube
installation side of cylinder body facing up (chamfered pin
insert hole of cylinder body facing up).
9. Using a pin punch [commercial service tool: diameter approx. 4 mm (0.16 in)], insert the reservoir tank pin into the pin hole.
WFIA0517E
WFIA0519E
WFIA0514E
WFIA0515E
Revision: January 20102010 Versa

BRAKE BOOSTERBR-21
< SERVICE INFORMATION >
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Removal and InstallationINFOID:0000000005396993
REMOVAL
CAUTION:
• Be careful not to splash brake fluid on painted areas such as body. It may cause paint damage. If brake fluid is splashed on painte d surfaces of body, wipe them with cloth immediately and then wash
it away with water.
• Be careful not to deform or bend brake tub es while removing and installing brake booster.
• Replace clevis pin if it is damaged.
• Be careful not to damage brake booster stud bolt thr eads. If brake booster is tilted or inclined during
installation, dash panel may damage the threads.
1. Remove vacuum hose from brake booster.
2. Remove master cylinder assembly. Refer to BR-15, "
Removal and Installation".
3. Remove LH lower instrument panel. Refer to IP-12, "
Removal and Installation"
1. Reservoir tank2. Master cylinder 3. Brake booster
4. Clevis 5. Spacer 6. Gasket
Up
AWFIA0530GB
Revision: January 20102010 Versa