Lincoln 1100 Series Service Manual page 40

11. Install the optical encoder, refer to "OPTICAL ENCODER" in this section for adjustment.
NOTE: The thin, slotted encoder disc must be handled with care so not to bend it.
12. Recheck tightness on the set screws to be sure they are tight. If available,
LOC TITE (the removable kind) should be used to secure set screws.
OPTICAL ENCODER ASSEMBLY
1. Remove gearmotor assembly (see "GEARMOTOR") Above.
2. If replacing with new assembly, cut wires to remove as new wires and plug are provided. If only
removing for access to coupling, see step 3.
3. Remove pins from connector with pin extractor tool, P/N 369600.
4. Loosen dust cover screws and pull dust cover away from motor.
5. Remove 2 screws from optical encoder and remove encoder.
6. Reassemble in reverse order.
7. To adjust optical encoder:
a. Position the encoder assembly so it does not rub the coupler hub and is
square with the encoder disc. The infrared light beam will be broken
by slots in the encoder disc. The encoder disc should not touch the bottom
or top of the optical encoder, if it does, readjust the coupling. The digital
speed readout may be observed to check proper adjustment of the optical
TACH. GENERATOR
1. Turn off power at main breaker.
2. Remove gearmotor assembly (see "GEARMOTOR")
3. Remove tach. cover plate and tach. leads. Mark wires for reassembly.
4. Remove 2 slotted screws from dust cover base and remove dust cover.
5. Loosen coupling set screw (.050 inch allen wrench).
6. Remove tach. bracket from motor. (4 screws)
7. Remove 4 screws from base of tach. and tach. is now free for removal.
8. Reassemble in reverse order. Maintain spacing of .010 minimum between tach.bracket and coupler hub.
NOTE: If a new tach. generator is installed, the D.C. motor control board MUST
BERECALIBRATED. There is no repair procedure for the tach. If defective, replace.
D. C. MOTOR CONTROL BOARD
L 1 A+
4 A. FUSE 1 A. FUSE
L 2
A -
P 2
P 3 P 1
MAX MIN IR CL TACH
BOARD P/N 369155
STYLE 1
Three different styles of control boards have been used and all three are still usable.
All three were supplied under the same part number.
TO REPLACE THE CONTROL BOARD:
1. Turn off power at main breaker and remove front control compartment cover.
2. Remove conveyor.
3. Remove and mark all wires from board
4. Remove control board bracket and board from unit, 3 screws.
5. Remove control board from mounting bracket. Remove 4 screws, lockwashers, and nuts.
40
L 1 A+
.
4 A. FUSE 1 A. FUSE
RESISTOR
L 2
P 2
P 3 P 1
MAX MIN
T 1 T 2
BOARD P/N 369155
STYLE 2
L 1
RESISTOR
A -
S 3
S 2
T 1 T 2
Impinger II –1100 Series Service Manual - Domestic
L 2 A - A +
RESISTOR
CAPACITOR
MIN MAX
S 1 T 1 T 2
BOARD P/N 369155
STYLE 3