Jet JVM-836 Operating Instructions And Parts Manual

Also see for JVM-836: Operator's manual Operator's manual

Jet JVM-836 Operating Instructions And Parts Manual Manual pdf 9 page image

97.3 Site preparationThe mill must be placed on an even surface andbolted to the floor. Anchor bolts of sufficient sizeand length must be fastened to the floor accordingto the mill’s footprint. See the site installationdiagram in Figure 1.7.4 Lifting the millFinish removing the sides of the crate. Leave millbolted to pallet until ready to move to its finallocation.The preferred method for lifting mill is with a hookthrough the hoisting ring which is mounted atop theram. Steady the mill to prevent it from spinning.An alternate method for lifting mill is with a sling.Refer to Figure 3 for proper position of sling underram. Note position of ram and that table has beenmoved against column. Tighten ram locking bolts(A, Figure 3) before lifting.Figure 3: sling locationKeep people a safe distanceaway while mill is being moved.Carefully lift mill and move to a position over theanchor bolts. Lower mill over anchor bolts andcheck for level, with a machinist’s level placed onthe table. Mill must be level back to front and sideto side. Shim if necessary, but remember that millmust be supported equally at all four corners.Check for level before tightening anchor bolt nuts,and check again after tightening them.It is advisable when placing the mill on a concretefloor to use grout (thin mortar) to correct anyunevenness in the concrete and provide a solidfoundation at all points.Mill must be supported equallyunder all four corners. Failure to comply maycause the column to twist and put a bind in theways.7.5 Completing assembly(Note: If the mill head is already upright, skip tostep 5 below. Otherwise, begin with step 1.)Before attempting to raise millhead, familiarize yourself with instructions insection 11.1, for procedures to safely raise andset up the mill head.1. Remove handwheel (A, Figure 4).2. Loosen four hexagonal nuts (B, Figure 4)about 1/2 turn each counterclockwise, justenough to allow rotation of head. Do notremove these nuts unless you are prepared toremove the head.3. Apply upward pressure on motor by hand torelieve pressure on worm mechanism, and usea 19mm socket and breaker bar to turn wormnut (C, Figure 4) and raise head to uprightposition.4. Slightly tighten nuts (B, Figure 4); not torqued,just snug for now. Before operating mill, followprocedures in section 11.1 to verify anglesettings and properly tighten the four nuts.Figure 45. Use mineral spirits, kerosene or other cleaningsolvent, to remove all rust-proofing from whereit may have been applied. This is important;moving the table or any other componentsbefore removing rust proofing will only put rustproofing where you don’t want it. Do not usegasoline, paint thinner, or lacquer thinner;these will damage painted surfaces.