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193-0119-100A
INSTALLATION/ADJUSTMENT INSTRUCTIONS
Portelcap
M~tor
Kit
ITEMS INCLUDED:
Kennedy
~
Part Number
Description
1
190-3999-003
Portescap Motor Assembly
2
147-0009-313
17.8K ohm, 1/4w,
196 resistor
1
147-0009-290
10.2K ohm, l/8w,
196 resistor, metal film
1
147-0009-280
8.06K ohm, 1/8w,
196 resistor, metal film
1
115-5040-473
0.047 mF, 50v capacitor
ELECTRONICS MODIFICATION
Perform the following changes to the ramp generator
circuit on the Transport Electronics PC board:
Model 330
1. Locate the type 4924 Transport Electronics PC
board in the card cage. Remove it.
2. Unsolder resistors R44, R46 and R47.
Replace as follows:
R44 - 17.8K ohm; R46 -
10.2K ohm; R47 - 8.06·K ohm.
3. Add capacitor C24 (0.047 mF capacitor supplied). •
Model 331
1.
Detach type 6305 Transport Electronics PC board
from 331 transport underside (four hex spacers).
/ ; . 2. Unsolder resistors R65 and R67.
3. Replace resistors R65/R67 with 17.8K ohm, 1/4
resistors supplied.
c23
4. Add capacitor ~:;:( (0.047 mF capacitor supplied).
PORTESAP MOTOR ASSEMBLY REPLACEMENT
1. Turn unit upside down to expose motor and
mounting bracket.
2. Detach old motor and mounting bracket as a unit
(four Phillips screws, one molex connector).
3. Attach
replacement
Portescap
motor
and
mounting bracket, using the same Phillips screws.
4. Check condition of capstan bevel.
Rcplace as
required. (Capstan bevel is Kennedy Part. Number
191-3872-002.
5. Check for a pr9perly centered motor bevel and
proper motor/capstan bevel
ten~ion.
(CapstHn
should
turn
when
motor
bevel
is
rota ted.
However, pressure should not be so great as to
deform the bevels where they make contact.
Loosen motor bevel's Al1en mounting screw and
read)ust motor bevel if required.)
6. If bevel centering is incorrect, perform the
following procedure:
Bevel Centering
1.
Replace the capstan shaft mounting block.
Mount the capstan motor in position but leave
the mounting screws loose.
2. From the front of the machine, sight down
both edges of the capstan shaft mounting
block, lining them up with the edges of the
capstan shaft.
(See Figure
1.)
Note thc
amount of motor shaft. bevel gear visible from
both sighting positions.
3. Adjust motor position until the same amount
of motor shaft bevel is visible from both
sighting positions.
(See Figure
J.)
Then
tightefl, the capstan motor mounting screws.
MOTOR SHAFT
I
BEVEL
CAPSTAN
SHAFT~
110·.11'
~
)
CAPSTAN SHAn MOUNTING BLOCK
Figure 1
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