(2)
AMM 12-15-03/301, Tires - Servicing
(3)
AMM 32-00-20/201, Landing Gear Downlocks
B.
Access
(1)
Location Zones
711 Nose Landing Gear
731 Landing Gear Left
741 Landing Gear Right
C.
Prepare for the Tire Inspection
S 496-002
(1)
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
S 496-003
(2)
Put wheel chocks on all landing gear wheels to prevent the airplane movement.
D.
Tire Pressure Check
S 616-004
(1)
Make sure the tire pressure is at the specified limits (AMM 12-15-03/301).
(a)
When a tire is turned when it is flat, all tires on that axle must be removed.
(b)
When a tire is turned at 30 percent or more below the specified pressure, all tires on that axle must be removed.
(c)
When the pressure decrease occurred after the airplane was parked (and the tire did not turn), remove the tire with the low pressure (AMM 12-15-03/301).
E.
Examine the Tires
S 216-010
(1) Examine the tires for the wear and damage conditions shown in Fig. 602 and replace the tires that exceed the limits.
NOTE: Refer to Fig. 601 for tire nomenclature and tire
____
construction details.
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MEASURE AT THE CENTER GROOVE(S) (MOLD SKID DEPTH)
Tire Nomenclature (Example) Figure 601
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TREAD SEPARATION
TIRES WITH BLISTERS OR BULGES IN THE TREAD ARE NOT SERVICEABLE. REMOVE TIRE IMMEDIATELY.
Tire Damage/Wear Conditions
Figure 602 (Sheet 1)
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CHEVRON CUTS
TIRES WITH CHEVRON CUTS IN THE TREAD ARE NOT SERVICEABLE IF ANY OF THE SINGLE CUT LIMITS ARE EXCEEDED OR CHUNKING OCCURS WHICH EXPOSES THE FABRIC.
Tire Damage/Wear Conditions
Figure 602 (Sheet 2)
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CIRCUMFERENTIAL CUTS
CUTS THAT PENETRATE THE TREAD CUTS THAT DO NOT EXPOSE FABRIC ARE
REINFORCEMENT/CUT PROTECTOR NOT SERVICEABLE IF THEY EXCEED THE
PLIES ARE NOT SERVICEABLE IF: ABOVE LIMITS.
(A) CUT EXCEEDS THE ABOVE LIMITS.
(B) CUT PENETRATES THE CARCASS PLIES
(BIAS) OR BELT PLIES (RADIAL)
(C) CUT IS NOT CONTAINED WITHIN ONE RIB.
TRANSVERSE CUTS
(A) TRANSVERSE CUTS THAT ARE CONTAINED (B) CUTS THAT EXTEND ACROSS A RIB FROM
WITHIN A RIB AND PENETRATE INTO THE GROOVE TO GROOVE WHICH ARE DEEPER
CARCASS PLIES (BIAS) OR BELT PLIES THAN THE GROOVE ARE NOT SERVICEABLE.
(RADIAL) ARE NOT SERVICEABLE.
Tire Damage/Wear Conditions
Figure 602 (Sheet 3)
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OPEN TREAD SPLICETREAD FLAKING, CHIPPING OR CHUNKING
TIRES WITH AN OPEN TREAD SPLICE ARE NOT ARE NOT SERVICEABLE IF ANY FABRIC IS EXPOSED.
TIRES WITH FLAKING, CHIPPING OR CHUNKING TREADS SERVICEABLE. A CLOSED TREAD SPLICE WILL APPEAR AS A THIN LINE THAT CROSSES THE TREAD RIBS.
THROWN TREAD PEELED RIB
TIRES WITH THROWN TREADS ARE NOT SERVICEABLE. TIRES WITH PEELED RIBS ARE NOT SERVICEABLE.
Tire Damage/Wear Conditions
Figure 602 (Sheet 4)
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SKID DEPTH IN FLAT SPOT 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 3(81)
