49.6. Disassembly and Reassembly
a. General. The preferred disassembly sequence is shown in b
below. However, this sequence can be altered to reach a specific part
for replacement purposes. Do not attempt to replace any part until
it is completely accessible.
(1) Remove the bottom cover (1) which is secured by four screws
(2) and flat washers (3).
(2) Remove hexagonal nut (4) and lockwasher (5) and separate
the mounting clamp and clamp post assembly (items 6 through
11) from the base plate assembly (35).
(3) Tap out the roll pin (6), and remove, as required, the re-
maining parts of the mounting clamp and clamp post assembly
(7 through 11).
(4) Remove the top cover (12) which is secured by five screws
( 13) and flat washers (14).
Caution: Be very careful when removing the top cover to
(5) Variable resistor (15), switch (16) and the diode (17) are
mounted to the top cover. Unsolder as required. Tag the
wires to insure proper replacement. Remove the knob (36),
hexagonal nut (37), and flat washer (38) that secure the
variable resistor; remove the collar (39) and hexagonal nut
(40) to remove the switch.
(6) With a screwdriver, slip the drivebelt (18) off the motor
(7) Remove three retaining rings (19), and lift off three rollers
(20) and the polarizer assembly (21).
(8) Unsolder the motor wires as required and tag to insure cor-
(9) Remove the motor (22) by removing the two nylon screws
(23) and flat washers (24). The motor (22) and motor
pulley (25) will drop as a unit from the base plate assembly
(10) Loosen setscrew (26) and separate the motor (22) from
the motor pulley (25).
(11) Remove the neon lamp (27) which is secured by the clamp
(28), screw (29), and lockwasher (30).
(12) Remove the power cable (31) which is secured by the clamp
(32), screw (33), and lockwasher (34).
c. Reassembly. Reassemble the spinner by following the disas-
sembly procedures of b above in reverse order. Before replacing the
top cover (12), adjust the motor drivebelt tension as described in