MODEL 66-80 VIBRATORY DRIVER/EXTRACTOR
IV. MAINTENANCE AND ADJUSTMENTS
G. LUBRICATION (CONTINUED)
THIRD Preference Group (Natural Petroleum Base):
AMOCO Perma Gear EP140
ARCO Pennant NL 460
CONOCO EP 460
EXXON Spartan EP 460
PHILLIPS AP 140
TEXACO Meropa 460
UNIONMP 85W-140
VALVOLINE Gear Lub 85W-140
SCHAEFFER 268 Lubricant is available from J&M in five gallon cans.
See SECTION VIII - ORDERING PARTS, page VIII-48.
5. Hydraulic System
To maintain the maximum operating efficiency in the precision parts of the
hydraulic system, it is extremely important to eliminate factors which can cause
breakdowns or unsatisfactory performance in the system. Among the most
common of these factors are rust, corrosion, contamination and the products of
oil deterioration. Most problems can be minimized or avoided simply by
maintaining a disciplined preventive maintenance program.
Some simple steps to follow as part of that program are:
a. Keep stored oil dry and clean at all times and always store in clean
containers.
b. Always clean tools, spouts, lids, funnels, etc. when used in conjunction with
the transfer of oil.
c. Never put dirty oil into the hydraulic system. Use only clean,
uncontaminated oil of the types recommended below. Never return to the
system any oil which has leaked out.
NOTE: Foreign material in the hydraulic system can drastically effect the life
and operation of many hydraulic component parts.
d. Clean or replace filter elements at the first indication that they are dirty or
ineffective.
Mixing of different manufacturers' hydraulic oil is not recommended. However,
it can be done if the oils are miscible (contain the same base stock and
additives). It may be necessary to contact an oil supplier to determine this.
IV-6
