Cincinnati Hydraulic Press Brake 230CBX12

Run ram to the maximum down position and block both ends of the ram

Turn OFF machine and LOCK the electrical disconnect

Remove ram pin cover plate on front of ram using extractor bar

Swing cylinder out from ram and insert wooden block between cylinder and housing so piston rod is clear of ram

Remove 6 or 8 bolts from seal retainer and insert 3 or 4 3/8\ x 1\" (or longer) set screws into tapped holes in retainer. Tighten set screws to back-off retainer"

Support retainer to keep from falling free and remove seal retainer

Remove seal from groove in bore of seal retainer. The seal has an energizing \o\" ring to pre-load the seal"

Replace with a new seal. Also inspect non-metallic bearing strip in bore of seal retainer and \o\" ring seal in top face of retainer. Replace if necessary"

Using auto body slide hammer-puller, remove the piston rod seal. This seal has no energizing. Be careful not to damage finished surface of piston rod or lower head seat

Cap removed and back blow performed

Low pressure air hose used for back blow

Enter the current operating hours

Is it time to replace the suction strainer? (Every 6 months or 1000 operating hours)

Is it time to replace the filter cartridge? (Every 1000 operating hours)

Sign off on the air breather cleaning

Power to machine turned OFF and disconnect switch on main electrical enclosure LOCKED

Cover and old servo valve removed from servo valve housing

Feeler gage measurement between servo valve anchor collar and servo valve housing

Locknuts installed on servo valve stem located at bottom of servo valve

New servo valve bolted in place

Adjustment of valve spool with adjusting nuts to obtain .188\ +.005 dimension"

Parallelism of bed and ram checked and adjusted if necessary

Check ram guide clearances – relevel if necessary

Adjust swivel end guide bearings

Lubricate cylinder clevis pin(s)

Clean and flush ram guides with oil

Check for water in reservoir(s)

Check reservoir oil level(s) everyday

Check lubrication at both guides everyday

Clean leveling band every 1 week

Lubricate stroke adjustment and tilt adjustment screws every 1 week