00197543-01_SM_JTF-S_ JTF-M_en.pdf - 第33页

Service Works 2.4.2 Worm Gear Drive Assembly R eplacement Procedure Service Bas e Unit Service Manual SIPLACE JEDEC Tray Feeder 33 ► Perform the elevator bar alignm ent procedure as d escribe in cha pter "2.6.2 Elev…

Service Works

Service Base Unit 2.4.1 Shaft Clamp Replacement Procedure

32 Service Manual SIPLACE JEDEC Tray Feeder

► Repeat the procedure for the other side if required.

Disassembling the shaft clamp

► Pull the two shaft clamps (3) to the outer position. Re-

move the flex coupling (2).

1. Gear box

2. Flex coupling

3. shaft clamp

4. Coupling adapter

5. 90 º opposed.

Right shaft clamp removed

► Remove the first shaft clamp (1).

Left shaft clamp removed

► Remove the second shaft clamp (1).

► Install the two new shaft clamps without tightening

the clamp screws.

► Insert the flex coupling.

Assembling the coupling

► Push the shaft clamp (1) and the flex (2) coupling

firmly together and tighten the shaft clamp screw (3).

► Center the flex coupling (2) between the coupling

adapter (4) and the gearbox shaft.

► Push the coupling adaptors together (coupling adap-

tor).

Service Works

2.4.2 Worm Gear Drive Assembly Replacement Procedure Service Base Unit

Service Manual SIPLACE JEDEC Tray Feeder 33

► Perform the elevator bar alignment procedure as describe in chapter "2.6.2 Elevator Bar Alignment

Procedure " [ ➙ 50].

2.4.2

2.4.2 Worm Gear Drive Assembly Replacement Procedure

Worm Gear Drive Assembly Replacement Procedure

After installing the new worm gear drive, snug the four mounting screws holding the gearbox in place.

The screws must be snug enough to position the gearbox against the mounting bracket while allowing

a limited freedom of motion for the gearbox.

► (1) Check that the motor drive shaft coupling screws and both shaft collar screws are loose.

► See figure "Worm Gear Assembly".

► (2) Verify that the coupling is completely disconnected from the coupling adaptor (see figure "Worm

Gear Assembly").

► Verify that both of the elevator lift bars have full and equal freedom of motion (any signi ﬁ cant drag

can result in gearbox failure).

This is a two-step process:

Worm Gear Assembly

1. Slip clutch

2. Motor drive shaft coupling screw use wrench: 3/32

hex key

3. Worm gear mounting screws use wrench: 7/64” hex

key driver

4. Coupling

5. Shaft collar screws use wrench: 3/32” hex key driver

6. Coupling adapter

Service Works

Service Base Unit 2.4.2 Worm Gear Drive Assembly Replacement Procedure

34 Service Manual SIPLACE JEDEC Tray Feeder

► To verify freedom of motion, move the elevator lift bar through its range of motion.

► Push the coupling and the shaft collar firmly into the coupling adaptor.

► Move the elevator lift bar through its range of motion.

► If any resistance or binding is felt, rotate the worm gearbox slightly to align the gearbox shaft with

the coupling.

► Loosen the shaft collar screw and repeat these steps for the other elevator lift bar assembly.

► (3) Verify that both shaft collar screws are loosened.

► Put the whole feeder upside-down.

Checking the Elevator Lift Bars

1. Elevator bar range of motion

2. Elevator lift bar

Rest the elevator lift bar against the two alignment pins

1. Elevator lift bar

2. Use alignment pins, part number 8045528