(2)
Fill starter with a pre-measured quantity of 350 cc of lubricating oil.
(3)
Reinstall plug and fill cap assembly.
H38669
Pneumatic Starter Servicing 5A1
12-13-41 Figure 201 May 01/01
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B. Service starter with lubricating oil in accordance with preferred method when ports are not level as follows:
NOTE: The optimum lubricating oil quantity for the starter is 350 cc, a variation of +100 cc can be tolerated without detrimental effects under normal operating conditions. This variation can be caused by the particular aircraft installation. Example: If fill port is five degrees above normal (level) position, capacity is approximately 430 cc when filled to overflow; if fill port is five degrees below normal (level) position, capacity is approximately 280 cc. The effect of higher lubricating oil volume is more rapid heating of lubricating oil due to churning and is most evident during free run. The effect of lower lubricating oil volume is marginal lubrication during starting and overrun conditions. If lower lubricating oil volume is required, more frequent lubricating oil level checks are required.
(1)
Remove only fill cap assembly.
NOTE: Fill cap assembly may be installed on either side of starter and should always be installed in the highest port.
(2)
Fill starter with a pre-measured quantity of 350 cc of lubricating oil.
(3)
Reinstall fill cap assembly.
C. Service starter with lubricating oil in accordance with alternate method of servicing as follows.
(1)
Remove fill cap assembly.
(2)
Slowly fill starter with lubricating oil until lubricating oil level is at the bottom thread of the port used for filling. This will approximate 350 cc lubricating oil in starter.
(3)
Reinstall fill cap assembly.
(4)
Motor starter, then recheck lubricating oil level. Lubricating oil level shall be at bottom thread of the port used for filling.
NOTE: Fill cap assembly may be installed on either side of starter and should always be installed in the highest port.
5A1
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12-13-41 Page 203
AIR CYCLE MACHINE - SERVICING
1. General
A. The procedure outlined in this section is for checking and refilling the oil level in the air cycle machine. For replacing oil refer to Chapter 21, Air Cycle Machine - Unit Servicing.
2. Equipment and Materials
A. Lubricant - Oil as approved by AiResearch Manufacturing Company. Refer to Chapter 20, Oil, Lubricant (Air Cycle Machine)
3. Service Air Cycle Machine
A. Open air conditioning equipment bay doors.
B. Check air cycle machine oil level.
(1) Observe oil level through sight glass. If oil does not extend three-fourths up the glass, refill. (See figure 201.)
NOTE: Operators may wish to check the chip detector plug for metal particles. The presence of metal particles is a sign of wear in the air cycle machine and of possible ACM failure.
C. Refill air cycle machine oil sump.
(1)
Remove filler plug.
(2)
Add oil until it starts to flow from filler port.
(3)
Check sight glass for condition of oil.
(4)
Install filler plug.
(5)
If sight glass check shows presence of water in oil sump, replace oil. Refer to Chapter 21, Air Cycle Machine - Unit Servicing.
D. Close Air Conditioning Equipment Bay Doors.
500
May 01/99 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 12-13-51 Page 201
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