Piper Navajo PA-31 Service Manual page 49

PIPER NAVAJO SERVICE MANUAL
The following list of materials were used In making the balancer:
2
-1 1 ea. Base
-2 2 ea. Tee
-3
2 ea. Sides
-4
1 ea.
Axle
5 2 ea. Nuts
- 2 ea. Spacer
2 ea. Spacer
-7 2ea. Bushing
2 ea. Bushng
8 1 ea. Pipe
*
2 ea. Bearings
12 x 11
2.5 x2 x 11
0.190 2024 T3 clad aluminum alloy
0.190 2024 T4 extruded aluminum
alloy
14 x 11
0.125 2024
T3 clad alum
0.125 x 10.25 4130
steel, normalized
AN 365-624
0.50
x 2.25 5052-0
aluminum tubing
0.50 x 1.25
5052-0 aluminum tubing
1.480 x 1.625
x 1.00 Phenolic
or aluminum
2.240
x 1.37 x 1.00
Phenolic or aluminum
1/8 x 9.3
black steel pipe
Save two of each size worn wheel bearings from
previous
inspections.
aluminum alloy
7
- 8
-4
Figure 2-12a. Tire Balancer
2-39c. APPLICATIO\ OF TIRE RUBBER PROTECTIVE AGENT.
To prevent tire sidewall cracking due
to rubber deterioration
as the result of ozone attack and weathering it is permissable to apply Age-Master I
Rubber Protective
Agent to the tires as follows:
a.
Clean all of tire surfaces of any oil or grease.
b.
First apply a single heavy coat using a brush at a rate of 0.4 to 0.5 fluid ounces per sq. foot. Cover
surface completely and evenly
Repeat application.
Allow to dry for 5 to 10 minutes.
c.
Second coat. Apply per step (b). Allow to dry for 20 to 30 minutes before handling.
d.
Remove any agent on wheel assembly with cleaning solvent.
e.
It is permissible to re-apply as conditions require.
2-40 BATTERY.
2-41 SERVICING BATTERY
Servicing of the battery, which is located in the nose ofthe airplane. involves
adding distilled water to maintain electrolvte even with the horizontal baffles.checkingcable
connections. and
checking for any spilled electrolvte that would lead to corrosion. A check for proper fluid level and presence of
corrosion
should be conducted at intervals of 50 hours or 30 days whichever comes first. When corrosion is
found. at each 100 hour inspection
or every 90 days. the battery should be removed from the box. and the
battery and box should be cleaned. Removal. cleaning and charging instructions may be found in Section XI
of this manual.
Revised: 10/12/83
1C1
HANDLING AND SERVICING