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- Page 1 OPERATION MANUAL SJ24 MACHINE Version 1GB Jakobsen Surface Grinders Fabriksvangen 15 DK-3550 Slangerup Denmark www.jakobsen-dk.dk Telephone: (+45) 36 77 62 22 www.muggler.com info@jakobsen-dk.dk Telefax: (+45) 36 77 62 23 info@muggler.dk...
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Page 2: Chapter L: Installation
SJ �4 CHAPTER l: INSTALLATION U N CRATING Your J A KOBSEN Surface Grinder has been carefully crated for s hipment to insure its accuracy when it reaches your plant. It is important that the crate is removed carefully so as n ot to damage the machine. - Page 3 SJ 24 LEVELlt-JG SCREW .. L" ��----- - -- --- --7 5.400" . . . 1065 : 41.930''. �-�-�--------+, · i---r---i : �- �-J ---- 3360 132.285"...
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Page 4: Installation On Floor
SJ 24 CLEANING Before shi ent all unpainted surfaces were coated with a rust preventive compound. This may be removed by wiping with rags saturated with paraffin oil ( troleum). It is especially im portant to cle. a n the free ends of the longitudinal guide ways. After the cleaning compound has be. - Page 5 SJ 24 Fasten the table end guards to the table by means of the ASSEMBLY screws placed in the table ends. D:> mt forget to fit the packing between the end guard and the table ends. Fit cover plate for rack under table (Cptional equi:prent) Fit the rail for crossfeed trip dogs.
- Page 6 SJ 24 , o t STOP...
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Page 7: Pressure Gauge
SJ 24 Regarding lubricating points and change and control of oil level see page 14 ELECTRICAL CONNECTIONS Before connecting the machine to the power supply, make sure that the supply corresponds with the setting of the motors stated in the control cabinet. The power supply is connected in the control cabinet at the left side of the column. - Page 8 SJ 24 The spacing of the trip dogs de termines the length of table travel. Adjust the position of each dog by pressing the button a nd sliding the dog along its track. Locate the trip dogs so that the grinding wheel will contact all of the work surface.
- Page 9 SJ 24 THE LONGITUDINAL MOVEMENT Hydraulic table travel S et the table trip dogs (22) to give the reouired traverse length. Ensure that the table reversing lever is between the dogs. (23) Now turn the table speed control lever (24) clockwise and the table will start t raversing between the dogs.
- Page 10 SJ 24 Set the crossfeed trip dogs (35) for the desired total saddle travel in each direction. The saddle will automatically re verse, when the crossfeed re versing lever (36) contacts the trip dogs. � ◄-.,_ ... , ,., - ..►...
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- Page 13 SJ 24 Hydraulic rapid crossfeed The hydraulic rapid cross movement is started by turninc the crossfeed control lever (25) fully to the rig�t. The direction is chosen with crossfeed reversing lever (36). NOTE: The cross cylinder is cleared of air by placing the cross trip dogs (35) in their extreme position and let the saddle bottom 5 - 6 times in both ends at low speed, using the rapid cross movement, Whenever the motions becomes jerky or...
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- Page 15 SJ 24 1) The multiple revolution selector (4 1) counts the revolutions of the handwheel (42) and is operated manually. The digits on the scaleknob (4 1) directly show the amount Qf vertical travel adJustable from 0,2 to 3,0 mm (.01" - .16"). With the scaleknob (41) on infinite (�) the autqmatic down...
- Page 16 SJ 24 The downfeed control lever ( 26 ) on front of the machine has two positions: left position: automatic downfeed at every saddle reversal s. right position: automatic downfeed at the table rever sal in each end. (This position is for plunge grind...
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Page 17: Preparation For Operation
CHAPTER 3 PREPARATION FOR OPERATION Dressing the \·Theel. The grindinr, wheel is carefully fitted on the wheel hub and mounted on the wheel spindle, whereafter it is dressed until it is round. Eventuallv the· sides are dressed until they are runnine. The wheel is dressed bv means of a diamond mounted in a holder and placed on the table or niarnetic chuck_ . -
Page 18: Grinding Instructions
SJ 24 "Grinding in" the m agnetic chuck The surfaces of the chuck have been ground at the factory, but to insure accuracy , it is neccessary to "grind in" the chuck on the Gr inder with which it is to be used. The followin rocedure is recommended for a new chuck-=--each time... - Page 19 LUBRICATION The saddle- and table ways are power lubricated by mean_ s of two lubrication pumps energized by the hydraulic system . The circuits for the lubricant and the hydraulic oil are separate. table reversal. Moving parts which are not to be lubricated a ccording to the lubrication ch a l't a l'e l'Wlning in permanently gNased page 16...
- Page 20 SJ 24 -------- -------- Olie Oil - 01 - Huile Sm0resteder INTERVAL INTERVALLE Lubricating points � Pos. Arbejdstimer Schmierstellen Working hours � � -;;; Arbeitsstunden ('.) Lieux d'huilage Heures de travail .., "' Vertikalspindel "' � � Vertical spindle >, �...
- Page 21 SJ 24 HYDRAULIC WHEEL DRESSING ATTACHMENT The over-the-wheel dresser (optional equipment) is mounted on the top of the wheel guard and permits dressing of wheel with out removing the work from the chuck. This device is very use ful on production grinding applications. "...
- Page 23 -· TEST SHEET for Surface Grinder -§-- Model No.: Serial Tolerance Tolerance Test measured permitted 0,02 mm Bed level - longitudinal direction in 1000. mm 0,02 mm Bed level - transverse direction in 1000 mm •. Surface of table parallel to the 0,015 mm in 1000 mm longitudinal travel...
- Page 24 -g;-- I LLUSTRATI O N T I L PR0VES KEMA - §)- I LLUSTRAT I O N FOR T E ST CH ART - ■ I LLUSTRATION FOR P R O F KARTE I LLU STRATI O N POUR S C H E M A DE CONTROL ◄...
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