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Dover DESTACO Automating Tomorrow 512P サービスマニュアル

P Series

Service Manual

3. Use an arbor to press the bearing cups into the

cartridges. Coat the outside of the cup and the

bore of the cartridge with an anti-seize lubricant

proir to pressing.

4. INSTALLATION OUTPUT SHAFT

A. Place the output shaft/follower wheel

assembly into the housing.

B. Install the output cartridge into the housing

and fasten with capscrews. Use the same

shims as on disassembly unless endplay

exists after completing steps C & D.

C. Tap the large output bearing cup into the

housing. First loosen the output cartridge

and press the cup flush with the backside of

the snap ring groove. Coat the outside of the

cup and the housing bore with anti-seize

lubricant prior to pressing.

Fig.8 Installing output bearing cup

D. Install the snap ring and tighten the output

cartridge capscrews. Check the shaft for

endplay. There should be a small amount of

drag from preloading the bearing.

If endplay exists remove shimstock from

cartridge. In rare instances it may be

required to remachine the cartridges if all

shims have been removed and endplay still

exists.

5. INSTALLING INPUT SHAFT

NOTE: The output shaft must be installed prior to

processing.

A. Place the input shaft/cam assembly into the

housing.

B. Install the input shaft cartridges, aligning the

match marks made during disassembly. Use

the same shims as on disassembly. Loosely

install the cartridge mounting capscrews.

6. SETTING CAM PRELOAD

NOTE: When setting cam preload, follow steps "A"

through "F".

A. Adjust the input (eccentric) cartridges until

the followers are parallel to the cam track

and preload the cam slightly. Use the dwell

area for this procedure (tighten cartridge

capscrews).

CAUTION: Improper preload results in

excessive loading of the indexer. Backlash (lack

of preload) is also not permissible, especially in

dwell.

B. Apply "Prussian blue" to the entire track.

Adjust the two cam plates until the Prussian

blue shows a uniform pattern. Individual

adjustment of the 250P and 387P does not

apply since they are one piece cams.

C. Rotate the input to each dwell position and

verify that there is no looseness in dwell, If

there is looseness adjust the eccentric

cartridges to preload the mechanism in the

loosest dwell.

Fig.9 Cams preloaded against followers.