Nissan Frontier D22. Manual — part 166
REAR DRUM BRAKE
BR-31
C
D
E
G
H
I
J
K
L
M
A
B
BR
Inspection
EFS003G0
WHEEL CYLINDER
●
Check wheel cylinder for leakage.
●
Check for wear, damage and loose conditions.
Replace if any such condition exists.
Removal and Installation
EFS003G1
REMOVAL
WARNING:
Clean brake lining with a vacuum dust collector to minimize the hazard of airborne asbestos or other
materials.
CAUTION:
Make sure parking brake lever is released completely.
1.
Shoe hold pin
2.
Plug
3.
Back plate
4.
Shoe (leading side)
5.
Air bleeder
6.
Spring
7.
Piston cup
8.
Piston
9.
Boot
10. Retainer ring
11.
Toggle lever
12. Wave washer
13. Shoe (trailing side)
14. Adjuster
15. Boot
16. Piston
17. Piston cup
18. Wheel cylinder
19. Adjuster lever
20. Spring seat
21. Shoe hold spring
22. Retainer
23. Adjuster spring
24. Return spring (upper)
25. Return spring (lower)
WFIA0134E
ABR370
BR-32
REAR DRUM BRAKE
1.
Release parking brake lever fully, then remove drum.
If drum is hard to remove, the following procedures should be
carried out.
a.
Remove plug. Then shorten adjuster to make clearance
between brake shoe and drum.
b.
Install two bolts as shown. Tighten the two bolts gradually.
2.
After removing shoe hold pin by rotating retainer, remove lead-
ing shoe then remove trailing shoe. Remove spring by rotating
shoes in direction arrow.
CAUTION:
●
Be careful not to damage wheel cylinder piston boots.
●
Be careful not to damage parking brake cable when sepa-
rating it.
3.
Remove adjuster.
4.
Disconnect parking brake cable from toggle lever.
CAUTION:
Be careful not to damage parking brake cable when sepa-
rating it.
5.
Remove retainer clip with a suitable tool. Then separate toggle
lever and brake shoe (trailing side).
SBR280B
SBR093A
ABR369
ABR408
REAR DRUM BRAKE
BR-33
C
D
E
G
H
I
J
K
L
M
A
B
BR
INSPECTION AFTER REMOVAL
Drum
●
Contact surface should be fine finished with No. 120 to 150
emery paper.
●
Using a drum lathe, lathe brake drum if it shows scoring, partial
wear or stepped wear.
●
After brake drum has been completely reconditioned or
replaced, check drum and shoes for proper contact pattern.
Lining
Check lining thickness.
INSTALLATION
NOTE:
●
Always perform shoe clearance adjustment.
●
Burnish the brake contact surfaces after refinishing or replacing drums or rotors, after replacing pads or
linings, or if a soft pedal occurs at very low mileage. Refer to
BR-29, "Brake Burnishing Procedure"
1.
Fit toggle lever to brake shoe (trailing side) with retainer clip.
2.
Shorten adjuster by rotating it.
●
Pay attention to direction of adjuster.
3.
Connect parking brake cable to toggle lever.
4.
Installation is in the reverse order of removal.
Maximum inner diameter (Repair limit)
LT26
: 261.5 mm (10.30 in)
LT30
: 296.5 mm (11.67 in)
SBR095A
Standard lining thickness
LT26
: 5.5 mm (0.217)
LT30
: 5.8 mm (0.228 in)
Lining wear limit (A)
LT26
: 1.5 mm (0.059 in)
LT30
: 1.5 mm (0.059 in)
SBR021A
SBR092B
Wheel
Screw
Depression
Left
Left-hand thread
Yes
Right
Right-hand thread
No
SBR217B
BR-34
REAR DRUM BRAKE
CAUTION:
Be careful not to damage wheel cylinder piston boots.
5.
Adjust shoe-to-drum clearance.
6.
Install brake drum.
7.
When installing new wheel cylinder or overhauling wheel cylin-
der, bleed air. Refer to
BR-10, "Bleeding Brake System"
8.
Adjust parking brake. Refer to
.
Wheel Cylinder Disassembly an Assembly
EFS003G2
●
Check all internal parts for wear, rust and damage. Replace if
necessary.
●
Pay attention not to scratch cylinder when installing pistons.
WFIA0085E
ABR917
WFIA0084E
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