Tri Tool 230B Miter Mandrel - Manual (Page 6)

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TRI TOOL INC.
92-0841 : Rev. 050317
GENERAL DESCRIPTION
The Model 230B Miter Mandrel Head is an accessory option that is used to expand
the versatility of the Model 230B BEVELMASTER™ by allowing in-situ setup on
irregular pipe, fittings, and valves.
The Miter Mandrel Head is secured to the ID of the workpiece using eight (8)
individually adjusted jackscrews in two (2) separate rows.
Once secure, two (2) distinct types of adjustments are easily performed: Angular
Offset and Parallel Offset.
With the Angular Offset Adjustment, the Mandrel Shaft can be precisely aligned with
the workpiece even though the ID of the workpiece might be irregular or it may be
adjusted up to 5° from the centerline in any direction desired to give a mitered prep.
The parallel Offset Adjustment accurately re-centers the Mandrel Shaft after the
angular offset adjustment has been made.
Both adjustments are accomplished with the aid of an ‘Indicating Sleeve’ and Dial
Indicator Kit.
5° Angular Offset
Adjustable Jackscrews (8)
Angular Offset Pivot Point
Parallel Offset
Adjustment
Screw (4)
Parallel Offset
Shift Planes
Parallel Offset
Adjustment Planes and Offsets