Piper SEMINOLE PA-44-180, Maintenance Manual

Page: 86 / 881

2. Remove wheel bearings from the wheel hub and clean thoroughly with a suitable solvent. When
repacking with grease, be sure the lubricant enters the space between the rollers in the retainer ring.
Do not pack the grease into the wheel hub.
3. Use extra care when greasing the constant speed propeller hub to avoid blowing the clamp gaskets.
Remove one grease fitting and apply grease to the other fitting until fresh grease appears at the hole of
the removed fitting.
LUBRICATION CHARTS.
The lubrication charts consist of individual illustrations for the various aircraft systems and each compo-
nent to be lubricated is indicated by a number, the type of lubricant and the frequency of application. Special
instructions are listed at the beginning of the lubrication charts and with the applicable component illustration.
Refer to Chapter 91 for a List of Consumable Materials and suggested vendors.
Figure 12-2, Lubrication Chart (Landing Gear, Main)
PIPER AIRCRAFT
PA - 4 4 - 1 8 0 / 1 8 0 T
AIRPLANE MAINTENANCE MANUAL
12-29-03
Page 12-14
Revised: June 20, 1995
1D14
COMPONENT LUBRICANT FREQUENCY
1. MAIN GEAR PIVOT POINTS, UPPER SIDE BRACE
SWIVEL FITTING, MAIN GEAR SIDE BRACE LINK
ASSY. SEE SPECIAL INSTRUCTION 2
MIL-G-23827 100 HRS
2. OLEO STRUT FILLER POINT, BRAKE RESERVOIR
SEE SPECIAL INSTRUCTION 4 AND CAUTION 1
MIL-H-5606 AS REQUIRED
3. HYDRAULIC PUMP RESERVOIR - SEE SPECIAL
INSTRUCTION 4 AND CAUTION 1
MIL-H-5606 100 HRS
4. MAIN GEAR DOWN LOCK ASSEMBLY - SEE SPECIAL
INSTRUCTION 6
MIL-G-7711 100 HRS
5. RETRACTION FITTING AND CYLINDER ATTACHMENT
POINTS, MAIN GEAR DOOR CONTROL ROD ENDS,
MAIN GEAR TORQUE LINKS - SEE SPECIAL
INSTRUCTION 6
MIL-L-7870 100 HRS
5A. EXPOSED OLEO STRUT SEE SPECIAL
CARBON DIOXIDE
RELEASE
INSTRUCTION 6. (S/N’S 4495001 AND UP) AGENT DRY LUBRICANT
MS-122N/CO2
100 HRS
6. MAIN GEAR WHEEL BEARINGS - SEE SPECIAL TEXACO MARFAX ALL
INSTRUCTION 3 AND NOTE 2 PURPOSE GREASE OR MOBIL
GREASE 77 (OR MOBIL EP2
GREASE)
100 HRS
7. MAIN GEAR DOOR HINGE - SEE SPECIAL
INSTRUCTION 6
MIL-L-7870 100 HRS
SPECIAL INSTRUCTIONS
2. Bearings and Bushings - Clean exterior with a dry type solvent before lubricating.
3. Wheel Bearings - Disassemble and clean with a dry type solvent. Ascertain that grease is packed between the bearing roller and cone. Do not
pack grease in wheel housing.
4. Oleo Struts, Hydraulic Pump Reservoir and Brake Reservoir - Fill per instructions on unit or container.
6. Lubrication Points - Wipe all lubrication points clean of old grease, oil, dirt, etc., before lubricating.
NOTES
2. Wheel bearings require cleaning and repacking after exposure to an abnormal quantity of water.
CAUTIONS
1. Do not use hydraulic fluid with a castrol oil or ester base.
3. Do not apply lubricant to rubber parts.