DE-STA-CO Precision Link Conveyors 1.5, 3.0, 4.5, 6.0 Table Top; 6.0, 9.0 Heavy Duty - Manual (Page 6)

CHAIN OR IDLER LUBRICATION
All idlers (chain or belt) are supplied with a
grease fitting and should be lubricated at least
once a month. Roller chains are used in some
applications to drive the line shaft or provide
power to optional equipment such as indexers,
oscillators, pick and place units, etc. These
chains should be brushed periodically with a
light machine oil. Timing belts do not require
any lubrication.
LINE SHAFT LUBRICATION
On conveyors supplied with a line shaft or
power take-off shaft, provisions have been
made in the support bearings of these shafts for
periodic lubrication. These bearings are to be
greased at least once every 500 hours of
operation with EXXON Andok “C” or equivalent
NGLI #4 bearing grease.
GENERAL MAINTENANCE
LUBRICATION
The general condition of all unpainted compo-
nents should be observed periodically and
given a light spray of machine oil as required to
retard rust.
We recommend that all seals be replaced
anytime the device is being disassembled
whether they are damaged of not, as most
damage to oil seals occurs at assembly when
recommended practice for seal installation is
generally not followed.
1. Check dimensions to be sure that shaft and
bore diameters match those specified for
the seal selected.
2. Check seal for damage that may have
occurred prior to installation. A sealing lip
that is turned back, cut or otherwise dam-
aged should be replaced.
3. Check bore to see that leading edge is
deburred. A rounded corner or chamfer
should be provided.
4. Check shaft and remove surface nicks,
burrs and grooves and look for spiral ma-
chine marks that can damage the seal lip.
5. Check shaft end and remove burrs or sharp
edges. Where the installation requires the
shaft seal against the sealing lip, the shaft
end should be chamfered.
6. Check splines and keyways for sharp edges
and protect the seal lip with an assembly
sleeve or shim stock. If not available, round
the edges of the spline or keyway as much
as possible and lubricate with a hard,
fibrous grease.
7. Check seal direction making sure that the
new seal faces in the same direction as the
original. Generally, the lip faces the lubri-
cant or fluid to be sealed.
8. Prelubricate the sealing element before
installation by wiping with lubricant being
retained.
9. Use correct installation tool — press fitting
tools should have an outside diameter
0.010" smaller than the bore size. If pos-
sible, center of tool should be relieved so
that pressure is applied only at the OD.
10. Use proper driving force, where possible an
arbor press; otherwise, a dead blow ham-
mer to avoid popping the spring out of the
seal. NEVER HAMMER DIRECTLY ON
THE SURFACE OF THE SEAL.
11. Bottom out the tool or seal to avoid cocking
the seal in the bore. This also positions the
seal correctly on the shaft.
12. Check for parts interference from other
machine parts that might rub against the
seal to cause friction and damaging heat.
OIL SEAL INSTALLATION RECOMMENDATIONS
5