M A I N T E N A N C E P R A C T I C E S
4. LUBRICATION
A. SERVO AMPLIFIER-INDICATOR
(1) Lubrication of the servo amplifier-indicator gear train assembly is required at least every
1000 hours. Lubrication of the r-f resolver may be required whenever the resolver is over¬
hauled.
D E TA I L S T E P S / W O R K I T E M S
KEY ITEMS
(a)
R e m o v e t h e d u s t c o v e r f r o m t h e u n i t .
Apply one drop of Pioneer No. 11 oil to each felt
washer of the gear train assembly while slowly
rotating the gears.
(b)
Avoi d e xc e s s o i l on g e ar s .
Remove the r-f resolver (if necessary) for lubri¬
cation.
(c)
(d)
Apply alight film of grease to r-f resolver shaft.
(e) Spin the resolver shaft to distribute grease evenly. R e m o v e e x c e s s g r e a s e .
(f)
Re-assemble and test the resolver.
5. DISASSEMBLY
A. JOB/USE
(1) Disassembly of the system components is required to perform those procedures concerned
with inspection, cleaning, adjustment, troubleshooting and repair.
NOTE
The following disassembly procedures apply only to the
Receiver models 201A, A-1, B, B-1 and Servo Amplifier
I n d i c a t o r m o d e l 5 5 1 A .
B. DISASSEMBLY PROCEDURE: RECEIVER (See Figure 301)
D E T A I L C T E P S / W O R K I T E M S KEY ITEMS
(1) Remove Receiver Assembly From Dust Cover (2)
(a) Rotate retaining cam (4) by turning retaining screw
(3) until cam is horizontal and clear of dust cover.
(b)
Carefully withdraw receiver assembly from dust
cover.
While withdrawing assembly from
the dust cover, slightly "rock'
c h a s s i s f r o m s i d e t o s i d e t o r e ¬
lease male connector (58) from
female connector (64).
I
(2) Remove front panel assembly (21).
(a) Loosen setscrews (6), (10), (14) and (18).
Remove four knobs (5), (9), (13) and (17)
f r o m f r o n t p a n e l .
(b)
Remove all knob shims (7), (11), (15), (19) and
washers (8), (12), (16) and (20) from panel.
Remove four screws (22) that secure front panel
(21) to chassis (71).
(c)
(d)
April 1965
(Revised April 1967)
Page 123
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General