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POB 2
Grovespring, MO 65662

 

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Van Norman N0. 12

 

Installation, Operation  and Maintenance Instructions for

Van Norman Ram Type Milling Machine

The No. 12 Van Norman Ram Type Milling Machine was built out of the best castings available and to the highest level of precision.  Each machine was inspected rigorously throughout manufacture for both quality and precision.  With normal care suggested in your Manual The No. 12 Van Norman Milling Machine was designed to provide many years of acceptable service. 

It is important to note The No. 12 was designed for an extraordinarily extensive variety of milling operations & can be used with the smallest amount of effort on the part of the machinist. 

In time that this Milling Machine was manufactured milling operations involved one or a few pieces. Time was greatly diversified in shops that used the No.12 Van Norman Milling Machine & assurance of mind because of the degree in which the Van Norman Milling Machine Company built its reputation. The spindle can be directly adjusted to any angle between horizontal and vertical. The spindle cutter head is also variable in or out with reverence to the column by the ram; thus given that, added range and flexibility to a large range of milling operations with the little of changes in setups. 

VAN NORMAN COMPANY, Springfield 7, Mass., U.S.A.

 

Handling

Serious damage can result from improperly lifting and moving a milling machine.  Where possible, it is the best procedure to "skid" the machine to its location, and ease it into place without a crane.  If cranes are used, it is most im­portant that the sling be properly applied to prevent permanent misalignment in the machine.  A sling of 3/4' diameter rope about 12' in circumfer­ence or longer, should be placed around the ram, as shown in Figure 1, the hook being located about parallel to the ram shifter shafts, with ram 3' ahead of column and on the right side of the ram.  Test the lift -for balance before lifting to any height.

FIG. 3-Stinging Method

CAUTION:                Do not allow sling to come against the ram feed screw, as it may cause damage;, keep it high on the back of the ram under the overarm, as shown.  Avoid other methods of slinging, as they may either spring the machine, or upset it as it is lifted.

Leveling

It is essential to the accuracy of the milling machine that it be properly leveled.  This should be done by the use of a long spirit level mounted on the table, both longitudinally and trans­versely.  If leveling blocks are used, these should be placed at the four corners of the base, as well as one on each side midway between the rear and front edges.  If leveling bloc" are not used, the concrete floor should be as smooth as possible, and tapered wedges or shingles, should be inserted in any openings so that the base receives as much foundation as possible.  Lag screws must he used for securing the machine to the floor after leveling.

Initial Cleaning and Preparation for Operation

The machine is shipped with slushing oil on all ways and machined surfaces to prevent rust during shipment.  This slushing oil should be washed off with kerosene or other dissolving agent to make sure that all surfaces are free from resi­due or dust which might have accumulated.  Then all slide ways and flat surfaces should be carefully covered with lubricating oil, after which it is advisable to move the table, saddle and knee by hand so that this oil will thoroughly work onto the surfaces.  Before operating machine, check all oil levels, and oil and grease in accordance with instructions under "Lubrication" on page 5.

 

FIG. 4-Erection Dimensions

 

 

 


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Machine Manual Services POB 2 Grovespring, MO 65662