YSM40R_Mainte_E.pdf - 第129页

3-59 3 Periodic maintenance items 5 Remo ve the belt from the pulley . Check that the removed belt is not cracked, worn and frayed. If the belt is cracked or worn, replace it referring to "2.1 Replacing the conveyor…

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Periodic maintenance items

5.3 Conveyor

5.3.1 Inspecting conveyor belt and cleaning guide and pulley

Prepare for work.

1. Remove all items sensitive to magnetic

fields such as wristwatches and magnetic

ID cards.

2. Press the emergency stop button to put

the machine in emergency stop.

3. Use the CLAMP ON/OFF switch to lower

the feeder exchange carriage and

detach it.

4. Remove the tape cutter duct.

5. Place a square cloth on the push-up

plate.

Detach the board clamp assembly.

Use a hex wrench (2.5) to remove the bolts (4

places shown in the figure at right) that

mount the board clamp assembly.

53371-N9-00

CAUTION

Do not remove any bolts other than the 4 bolts shown in

the ﬁgure at right.

Put a mark at the pulley position.

Using an oil-based pen, put a mark to

indicate the position of the bolt that mounts

the tensioner pulley.

53372-N9-00

Loosen the belt.

1. Use 2 hex wrenches to loosen the belt

tensioner pulley and move it to the end

of the tension adjusting slot (in the

loosening direction).

Hex wrench on pulley side : 5 mm

Hex wrench on bolt side : 4 mm

2. Use a flat-head screwdriver to remove

the end pulley shaft next to the tensioner

pulley loosened, and then remove the

end pulley.

53373-N9-00

CAUTION

Use care to avoid losing the washers.

Step 2

Board clamp assembly

Board clamp assembly mounting bolts

Removing the board clamp assembly

Marking the pulley position

Step3

Use an oil-based pen to mark the pulley position.

Loosening the belt

Step 4

Loosen this pulley.

Remove this pulley.

Hexagon wrench (5)

Hexagon wrench (4)

WasherPulley shaft

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Periodic maintenance items

Remove the belt from the pulley.

Check that the removed belt is not cracked,

worn and frayed.

If the belt is cracked or worn, replace it

referring to "2.1 Replacing the conveyor

belt" in Chapter 6.

Clean the guides and pulleys.

1. Use a vacuum assembly (option) to

suction the belt wear debris on the belt

guides and sensors, etc.

2. Use a plastic spatula or similar tool to

remove the belt wear debris adhering to

the outer peripheral surface of the

pulleys.

3. Use a brush or similar tool to remove the

belt wear debris caught in the belt

guides.

53394-N9-00

CAUTION

Use a plastic spatula and brush to avoid scratching the

pulleys and guides.

CAUTION

Do not use a solvent (IPA, etc.) unless the guides and

pulleys are excessively dirty. If using a solvent, be

careful not to spill the solvent on the bearing in the

pulleys during cleaning.

Reattach the belt.

1. Temporarily place the belt on the belt

tensioner pulley.

2. Place the belt on the end pulley

removed in Step 4 and mount it with the

pulley shaft together with the washer.

3. Move the belt tensioner pulley to the

position marked in Step 4 and tighten the

bolt while applying tension.

4. If there is a slack in the belt, adjust the

position of the belt tensioner pulley to

apply proper tension.

53374-N9-00

NOTE

The speciﬁed conveyor belt tension for this machine is as follows. Use a tension gauge to adjust the belt tension as

needed. Stage 1 : 260 to 320Hz / Stage 2 : 180 to 220Hz

CAUTION

The tightening torque for the belt tensioner pulley is 5.5 N·m. Be careful not to overtighten.

Attach board clamp assembly.

1. Attach board clamp assembly to the original position. Mount it by tightening 4 bolts with hex wrench

(2.5).

2. Remove square cloth.

Return the tape cutter duct to the original position.

Tension measurement point

Step 7

Tension measurement point

(outer side of each lane)

Step 6

Spatula

(made of plastic)

Brush

Belt guides

Outer peripheral surface of pulley

Belt wear debris

sticking to pulley

Cleaning the guide and pulley

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Periodic maintenance items

5.3.2 Cleaning and greasing the hexagon spline

The cleaning and lubrication procedures for the conveyor's IN and OUT port hexagon splines are given below.

See "Chapter 5 Lubricating points" for lubricating points and lubricating type.

Set the conveyor width to the

maximum.

Manually set the conveyor width to the

maximum.

Prepare for work.

1. Remove all items sensitive to magnetic

fields such as wristwatches and magnetic

ID cards.

2. Press the emergency stop button to put

the machine in emergency stop.

3. Use the CLAMP ON/OFF switch to lower

the feeder exchange carriage and

detach it.

Clean the hexagon spline.

Wipe away old grease and dirt from the

entire hexagon spline with a lint-free cloth

(for clean room).

53376-N9-00

NOTE

If it is difﬁcult to clean the hexagon spline due to the

tape cutter duct, then remove the tape cutter duct.

Note, however, that emergency stop cannot be

canceled when the tape cutter duct is removed. So

you will have to reattach it to cancel emergency stop.

Wipe the rest of the hexagon spline.

1. Set the feeder exchange carriage and

cancel emergency stop.

2. Narrow the conveyor width manually,

press the emergency stop button again,

and detach the feeder exchange

carriage.

3. Wipe the rest of the hexagon spline that

could not be wiped.

Apply grease.

Apply a uniform coat of the specified grease

(NSL) by hand over the surface of the

hexagon spline. As with Steps 3 to 4, adjust

the conveyor width to apply grease over the

entire hexagon spline.

53377-N9-00

Cleaning the hexagon spline

Step3

Cleaning cloth

Hexagon spline

Applying grease

Step 5

Apply a thin coat of

grease in a uniform

manner.

Grease