(b)
Remove wheel bearings from wheel hub and clean thoroughly with suitable solvent. When repackingwith grease, ensure lubricant enters space between rollers in retainer ring. Do not pack grease into wheel hub.
(c)
Useextra care when greasing Hartzell propeller hub to avoid blowing clamp gaskets. Remove one grease fitting while applying grease to other fitting. Uneven greasing effects propeller balance.
3. Applicationof Oil
If specific lubrication instructions for certain components are not available, observe the following precautions:
CAUTION: AFTER THOROUGHLY WASHINGAIRPLANE,ENSURELANDING GEAR, FLIGHT SURFACE WINGS, FLAP TRACKS, ELEVATORTRIMSCREW, AND ENGINE COMPARTMENT ARE STILL PROPERLY LUBRICATED.
(a)
Apply oil sparingly. Never apply more than enough to coat bearing surfaces.
(b)
Since control cables are sufficiently coated by manufacturer, protection
additional for corrosion preventionis unnecessary.
EFFECTIVITY:
040-999
12-20-00 PAGE1
12-20-00Jan10/90
PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCEMANUAL
B. Lubrication Charts
WARNING: KEEP JET FUELS AND LUBRICATING OILSOFF OF SKIN.
CAUTION: DO NOT USE HYDRAULIC FLUID WITH CASTOR OIL OR ESTER BASE.
CAUTION: DO NOT APPLY LUBRICANT TO RUBBER PARTS.
Lubrication charts consists of individual illustrationsfor various aircraft systems with components referenced by numbers and by type of lubrication and frequency of lubrication in hours. Special instructions are listed at the beginning of lubrication chart and are referenced on each particular chart.
NOTE: Lubricate pilot and passenger seats track rollers and stop pins as required using general purpose,low temperature lubricating oil (MIL-L-7870).
NOTE: Wheel bearings require cleaning and repacking after exposure to excessive quantity of water.
CHART 1
SPECIALINSTRUCTIONS
(1)
Clean exterior of bearings and bushings with dry solvent before relubricating.
(2)
Disassembleoil cooler door, ice protection transmission, and screws. Trim screws and wheel bearings; clean with dry solvent. When reassembling transmission, lubricate and apply thin coating to screw.
(3)
Fill oleo struts, power pack reservoir, and brake reservoir per instructions on unit or container or container or refer to 12-10-00.
(4)
Remove one of two propeller grease fitting for each blade. Apply grease through fitting until fresh grease appears at hole of removed fitting.
(5)
Wipe all lubrication points clean of old grease, oil, dirt, etc, before relubricating.
(6)
Clean or replace oil filter element (refer to 12-10-00) after usage of 50 hours or less. Change engine oil every 400 hours or 9 months, whichever comes first. (Refer to latest Pratt & Whitney Canada Service Bulletin No. 13001 for a list of approved oils.)
(7)
Loosen boot from gear lock assembly and grease cable.
EFFECTIVITY:
040-999
PAGE 22-20-00
Jan 10/90 12-2O-00
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
B. LubricationCharts(continued)
CHART 2 LUBRICATIONCHART(LANDINGGEAR, MAIN) COMPONENT LUBRICANT FREQUENCY
1.
GEARDOOR,OUTBOARD,HINGESAND CONTROL RODS,RIGHTAND LEFT MIL-L-7870 100 HRS
2.
GEAROLEOSTRUT FILLER, RIGHTAND LEFT; COAT PISTONTUBEAS NECESSARY MIL-H-5606 AS REQUIRED
3.
GEARCONTROLRODENDS AND BELLCRANK BOLTS,RIGHT AND LEFT MIL-L-7870 100 HRS
4.
WHEELBEARINGS. RIGHTAND LEFT MIL-G81322 100 HRS
5.
GEARDOWNLOCKAND UP LOCK HOOKS, GEAR TORQUELINKFITTINGS,
RIGHTAND LEFT MIL-G81322 100 HRS
6.
GEAR SIDE BRACE LINK BUSHINGAND HOUSING BUSHING,MAIN GEAR DRAG
LINKASSY, TORQUE LINE ASSY, RIGHTAND LEFT MIL-G-83122 100 HRS
7.
GEARCONTROLRODENDS, CYLINDER ENDHOOK, RIGHT ANDLEFT MIL-L-7870 100 HRS
8.
GEARDOOR,INBOARD,HINGES AND CYLINDERENDS,RIGHTANDLEFT MIL-L-7870 100 HRS
9.
BRAKEANDPOWERPACK RESERVOIR MIL-H-5606 AS REQUIRED
10.
GEARLOCKCABLEASSEMBLY(Referto Special Instructions#7,12-20-00, Page2) MIL-G-81322 100 HRS
5
5
6
8
10
1
2
5
4
MainLandingGear
Figure 301
EFFECTIVITY:
040-999
12-20-00
PAGE
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
B. LubricationCharts(continued)
CHART 3 LUBRICATIONCHART (LANDING GEAR,NOSE) COMPONENT LUBRICANT FREQUENCY
1.
NOSEGEAROLEOSTRUTFILLER MIL-H-5606 AS REQUIRED
2.
STEERING ARM ROLLERS BELLCRANKRETRACTION 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：夏延飞机维护手册 Cheyenne IIIA PA-42-720 AMM 1(48)
