Infiniti QX4 (R50). Manual — part 506
SMA848B
Checking Drum Brake
NBMA0033
WHEEL CYLINDER
NBMA0033S01
Check for leakage.
DRUM
NBMA0033S02
Check condition and inner surface.
Standard inner diameter:
295 mm (11.61 in)
Drum repair limit (Inner diameter):
296.5 mm (11.67 in)
SMA849B
LINING
NBMA0033S03
Check wear or damage.
Standard thickness:
6.1 mm (0.24 in)
Lining wear limit (Minimum thickness):
1.5 mm (0.059 in)
SMA870C
TEMPORARY METHOD FOR CHECKING LINING WEAR
NBMA0033S04
Remove inspection hole plug and check for lining wear.
SMA874C
Checking Steering Gear, Linkage and Transfer
Gear
NBMA0034
STEERING GEAR
NBMA0034S01
I
Check gear housing and boots for looseness, damage and
grease leakage.
I
Check connection with steering column for looseness.
STEERING LINKAGE
NBMA0034S02
I
Check ball joint, dust cover and other component parts for
looseness, wear, damage and grease leakage.
STEERING TRANSFER GEAR
NBMA0034S03
I
Check gear box for looseness, damage and grease leakage.
CHASSIS AND BODY MAINTENANCE
Checking Drum Brake
MA-26
SST280B
Checking Power Steering Fluid and Lines
NBMA0035
CHECKING FLUID LEVEL
NBMA0035S01
I
Check fluid level with engine off.
I
Check fluid level with dipstick on reservoir cap. Use “HOT”
range at fluid temperatures of 50 to 80°C (122 to 176°F). Use
“COLD” range at fluid temperatures of 0 to 30°C (32 to 86°F).
CAUTION:
I
Do not overfill.
I
Recommended fluid is Genuine NISSAN PSF II or equiva-
lent.
Refer
to
“RECOMMENDED
FLUIDS
AND
LUBRICANTS”, MA-11.
SST118B
CHECKING LINES
NBMA0035S02
I
Check lines for improper attachment, leaks, cracks, damage,
loose connections, chafing and deterioration.
I
Check rack boots for accumulation of power steering fluid.
Lubricating Locks, Hinges and Hood Latches
NBMA0036
SMA897C
GI
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
CHASSIS AND BODY MAINTENANCE
Checking Power Steering Fluid and Lines
MA-27
Checking Seat Belts, Buckles, Retractors,
Anchors and Adjusters
NBMA0037
SMA854CE
CHASSIS AND BODY MAINTENANCE
Checking Seat Belts, Buckles, Retractors, Anchors and Adjusters
MA-28
Engine Maintenance
DRIVE BELT DEFLECTION
NBMA0038
Unit: mm (in)
Used belt deflection
Deflection of new belt
Limit
Deflection after adjustment
Alternator
Power steering oil pump
Fan
7 (0.28)
4 - 5 (0.16 - 0.20)
3.5 - 4.5 (0.138 - 0.177)
Air conditioner compressor
12 (0.47)
9 - 10 (0.35 - 0.39)
8 - 9 (0.31 - 0.35)
Applied pushing force
98 N (10 kg, 22 lb)
DRIVE BELT TENSION
NBMA0042
Unit: N (kg, lb)
Used belt
New belt
Limit
After adjustment
Generator
Power steering oil pump
Fan
294 (30, 66)
730 - 818 (74.4 - 83.5, 164 - 184)
838 - 926 (85.4 - 94.5, 188 - 208)
Air conditioner compressor
196 (20, 44)
348 - 436 (35.5 - 44.5, 78 - 98)
470 - 559 (47.9 - 57.0, 106 - 126)
SPARK PLUG TYPE
NBMA0039
Symbol
Make
Standard type
PLFR5A-11
NGK
Cold type
PLFR6A-11
NGK
Hot type
PLFR4A-11
NGK
Plug gap (Nominal)
1.1 mm (0.043 in)
Chassis and Body Maintenance
WHEEL BALANCE
NBMA0040
Maximum allowable unbalance
Dynamic (At rim flange)
g (oz)
10 (0.35) (one side)
Static
g (oz)
20 (0.71)
GI
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
SERVICE DATA AND SPECIFICATIONS (SDS)
Engine Maintenance
MA-29
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