XPM2_XPM3 Technical Ref Manual Conveyor1.pdf - 第18页
VI TRO NICS-SOLTEC REFLO W SOLDERING SYSTEMS Oc tober 10, 2008 18 XP M 2 / XPM 3 Technical Reference Manual Conv eyor Sy stem s 7. Turn the thrus t was her under ea ch barrel nut by hand to v erif y that all of the nuts …
VITRONICS-SOLTEC REFLOW SOLDERING SYSTEMS
October 10, 2008
17
XPM2 / XPM3 Technical Reference Manual Conveyor Systems
5. Lift the rails up into the hanger bars and secure with barrel nuts and thrust washers. Do not force the nuts
into the hanger slots, they should turn all the way down by hand. Excessive force will gall the stainless
steel nuts and bar slots preventing free movement of the rail for thermal growth. If the barrel nuts bind,
stop and check alignment of the hanger with the rail. Tighten the barrel nuts until they bottom out against
the top of the rail clamps. Make sure that the jam screw in the top of the barrel nut is backed off enough
so that it does not stop the barrel nut before it is fully seated. Once the barrel nuts are tightened tighten
the jam screws.
6. Visually check that all hangers are resting level with the rail, then slide each rail hanger clamp toward the
onload end of the machine until the barrel nuts are approximately 1/16 (1.5mm) from the end of the
hanger bar slots. Use a 3/16 hex key to tighten the rail clamp screws to lock the clamps to the rails.
VITRONICS-SOLTEC REFLOW SOLDERING SYSTEMS
October 10, 2008
18
XPM2 / XPM3 Technical Reference Manual Conveyor Systems
7. Turn the thrust washer under each barrel nut by hand to verify that all of the nuts are in contact with the
hanger bars.
NOTE: It is very important to the function of the hanger system that all barrel nuts carry
some load. The installed height of the gantries can vary slightly due to tolerance stack-
ups in the oven sheet metal subassemblies so it is sometimes necessary to adjust the
height of the rail in the hangers. Equal height of all hangers is especially important on
1240 machines where two pairs of supports are only separated by one cell.
If adjustment is needed use the intermediates as the known height reference and make adjustments to the
hangers at the gantries.
To lower the rail height in a hanger loosen the jam screws then unscrew both barrel nuts an equal amount,
up to three full turns of the barrel nuts maximum.
VITRONICS-SOLTEC REFLOW SOLDERING SYSTEMS
October 10, 2008
19
XPM2 / XPM3 Technical Reference Manual Conveyor Systems
To raise the rail height add one or two thrust washers under both barrel nuts, fully seat the nuts, then
unscrew them equal amounts to fine tune as necessary. There is only enough clearance for two additional
thrust washers, do not attempt to use more than three.
When adjustments are complete tighten the jam screws to lock the barrel nuts in place.
8. After aligning the fixed rail and setting parallel (see next section), temporarily remove the fixing screws
from the onload end capture brackets and check for free movement of both rails in the hanger brackets.
The barrel nuts should slide in the hanger bar slots without catching or tending to twist the hanger
assembly around its mount.