TM 5-3610-286-20
1-8.
Location and Description of Major Components (cont).
(f) Disengaging shaft assembly. Located between fountain roller and oscillator roller of
dampening group. Controls form rollers’ position for installation and removal.
(g) Swivel lever assemblies. Located on oscillator roller bearings. House form roller
journals. Controlled by disengaging shaft assembly.
(h) Bearing belt assemblies. Located on operator’s and drive side frames. Hold dampening
fountain roller. Operator’s side bearing also acts as driving mechanism and metering device for dwell
of fountain roller.
(i) Disengaging assembly. Located on operator’s side frame. Disengaging device for
dampening form rollers.
(5) Plate cylinder group (05).
(a) Swing gear. Located on drive side of piate cylinder. Main driving gear for driving
mechanism which runs inking and dampening groups. Contains an adjustment indicator for
positioning of plate cylinder swing.
(b) Plate cylinder. Located between side frames. Holds plate for printing operations.
Houses piate clamp and register scopes on its face.
(c) Cover plate assembly. Located on operator’s side of plate cylinder. Reduces end-play of
plate cylinder. Consists of needle bearing, shims, and cover plate.
(d) Plate clamp. Located on plate cylinder face. Clamping device for lithographic plate.
(e) Register scope. Located on plate cylinder face. Positioning device for lithographic
plates.
(6) Register group (06).
(a) Suction valve housing assembly. Located under front lay assembly on feeder end of
press. Supplies slight suction on lead edge of paper sheet to hold it in position at front lays. Motor and
vacuum pump housing is located under feeder tape table and mounted on feeder.
(b) Pull side lay assembly. Located on the register table. Works with pull rail assembly to
control sheet alinement for registration purposes. It is operated by cam and spring rod on drive side
frame.
(c) Pull rail assembly. Located under register table. Operates with pull side iay assembly to
control sheet registration. Two levers and cam shaft control pull rail operation.
(d) Cam shaft assembly. Located under register table. Controls all operations performed by
pull rails and front lays. It also controls gripper operation of ranger drum.
(e) Front lay assembly. Located at front of register table. Controls sheet prior to pick-up by
ranger drum. Light barriers send signals to electronic control box to ensure proper sheet alinement
during printing operations. Front lays aid in holding and alining sheets prior to pick-up by ranger
drum.
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