Filter
Top Products
Page 7
ak. DO NOT adjust or repair a hoist unless qualified to
perform hoist maintenance.
al. DO NOT attempt to lengthen the wire rope or repair
damaged wire rope.
am. DO NOT allow personnel not physically fit or properly
qualified to operate hoist.
an. DO NOT operate hoist unless limit switch is operating
properly.
ao. DO be sure there is no twist in wire rope.
ap. DO avoid operating hoist when hook is not centered
under hoist. Avoid side pulls and swinging of load or
load hook when traveling hoist.
aq. DO operate hoist within recommended duty cycle and
do not “jog’’ unnecessarily.
ar. DO conduct regular visual inspections for signs of
damage or wear.
as. DO NOT operate hoist with hooks that have opened
up. See Figure 5-1.
at. DO provide supporting structure or anchoring means
that has a load rating at least equal to that of the hoist.
au. DO NOT use hoists in locations that will not allow
operator movement to be free of the load.
av. DO, when starting to lift or pull, move the load a few
inches at which time the hoist should be checked for
proper load holding action. The operation shall be
continued only after the operator is assured that the hoist
is operating properly.
aw. DO NOT leave a loaded hoist unattended at the end
of a work shift or for extended periods during the work
shift. Where operations are such that this condition cannot
be avoided the operator must be assured that the
condition does not create a hazard to personnel or
property.
ax. DO NOT use the hoist load limiting device to measure
the load.
ay. DO NOT operate hoist unless hook moves in the same
direction as indicated on the pushbutton. If opposite
direction occurs, see pre-operation checks, Paragraph 2-
4.b.
az. Observe recommended inspection and maintenance
procedures.
ba. DO use common sense and best judgement whenever
operating a hoist. Observe American National Standard
Safety standard, ANSI B30.16, Iatest issue.
DO NOT operate hoist with the hoisting rope out of the
drum groves. Such operation may result in the rope
breaking and dropping the load which can cause
damage to equipment and injury to operator and other
personnel. Hoist rope will remain in the drum groves
during operation under normal operating conditions,
however, slack or kinked rope, excessive side pulls,
swinging or jerking of load, or similar abuse, may cause
the rope to leave the groves.
WARNING
SECTION IV — LUBRICATION
4-1.GENERAL. The lubrication services outlined in
paragraphs 4-2 thru 4-6 should be performed at regular
intervals to maintain top hoist performance and ensure long
life. Intervals of at least six (6) months, coinciding with spring
and fall seasons, are recommended. The reason for this is,
on hoists installed out-of-doors and in unheated areas, a
“cold test” lubricant is required in cold (below freezing)
climates making seasonal changes necessary.
4-2. CHANGE GEARCASE OIL. (Figure 4-1)
a. Remove oil drain plug from bottom of gearcase and drain
out oil. (Two drain plugs, one on front and one on back of
gearcase.)
b. Flush out housing using petroleum solvent. Reinstall drain
plug.
c. Refill thru oil hole cover to proper level (bottom of oil
level plug hole) using 10 pints of Automatic Transmission
Fluid, DEXRON III Type, suitable for all temperature ranges.
Figure 4-1. View Showing Location of
One Oil Drain Plug.
4-3.LUBRICATE HOISTING CABLE. Hoists are shipped from
the factory without an exterior coating on hoisting cable. It is
recommended, where conditions permit, that the cable be
thoroughly coated at installation and kept well lubricated with
LUBRIPLATE Chain and Cable Fluid, or equal, suitable for all
temperature ranges.
4-4. LUBRICATE UPPER SHEAVE AND LOWER BLOCK
ASSEMBLY.
a. All hoists have grease fittings located in ends of sheave
pins. Apply (*) NLGI No. 2 grease for operating temperatures
from +50°F to +125°F. For colder temperatures, (-20°F to
+50°F) use NLGI No. 1 grease.
b. Apply a few drops of S.A.E. No. 50 oil to hook thrust
bearings.
(*) National Lubricating Grease Institute.
4-5. LUBRICATE LIMIT STOP LEVER.
a. Apply a few drops of S.A.E. No. 50 oil to pivot points of
limit rod.
b. Apply a few drops of S.A.E. No. 50 oil to shaft bearing at
rear of electrical compartment.
11413A