9
7.3
Site preparation
The mill must be placed on an even surface and
bolted to the floor. Anchor bolts of sufficient size
and length must be fastened to the floor according
to the mill’s footprint. See the site installation
diagram in Figure 1.
7.4
Lifting the mill
Finish removing the sides of the crate. Leave mill
bolted to pallet until ready to move to its final
location.
The preferred method for lifting mill is with a hook
through the hoisting ring which is mounted atop the
ram. 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 under
ram. Note position of ram and that table has been
moved against column. Tighten ram locking bolts
(A, Figure 3) before lifting.
Figure 3: sling location
Keep people a safe distance
away while mill is being moved.
Carefully lift mill and move to a position over the
anchor bolts. Lower mill over anchor bolts and
check for level, with a machinist’s level placed on
the table. Mill must be level back to front and side
to side. Shim if necessary, but remember that mill
must 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 concrete
floor to use grout (thin mortar) to correct any
unevenness in the concrete and provide a solid
foundation at all points.
Mill must be supported equally
under all four corners. Failure to comply may
cause the column to twist and put a bind in the
ways.
7.5
Completing assembly
(Note: If the mill head is already upright, skip to
step 5 below. Otherwise, begin with step 1.)
Before attempting to raise mill
head, familiarize yourself with instructions in
section 11.1, for procedures to safely raise and
set up the mill head.
1. Remove handwheel (A, Figure 4).
2. Loosen four hexagonal nuts (B, Figure 4)
about 1/2 turn each counterclockwise, just
enough to allow rotation of head.
Do not
remove these nuts unless you are prepared to
remove the head.
3. Apply upward pressure on motor by hand to
relieve pressure on worm mechanism, and use
a 19mm socket and breaker bar to turn worm
nut (C, Figure 4) and raise head to upright
position.
4. Slightly tighten nuts (B, Figure 4); not torqued,
just snug for now.
Before operating mill, follow
procedures in section 11.1
to verify angle
settings and properly tighten the four nuts.
Figure 4
5. Use mineral spirits, kerosene or other cleaning
solvent, to remove all rust-proofing from where
it may have been applied. This is important;
moving the table or any other components
before removing rust proofing will only put rust
proofing where you don’t want it. Do not use
gasoline, paint thinner, or lacquer thinner;
these will damage painted surfaces.
Содержание JVM-836
Страница 7: ...7 6 0 JVM 836 Installation Layout Figure 1...
Страница 17: ...17 13 1 1 JVM 836 Head Assembly Exploded View...
Страница 20: ...20 13 2 1 JVM 836 Upper Head Assembly Exploded View...
Страница 23: ...23 13 3 1 JVM 836 Leadscrew Assembly Exploded View...
Страница 25: ...25 13 4 1 JVM 836 Base Assembly Exploded View...
Страница 29: ...29 14 0 Electrical Connections for JVM 836...
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Страница 32: ...32 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...