MODEL 66-80 VIBRATORY DRIVER/EXTRACTOR
IV. MAINTENANCE AND ADJUSTMENTS
G. LUBRICATION (CONTINUED)
When operating in arctic conditions, it is recommended to use an immersion
heater to pre-heat the oil prior to starting. Contact J&M for other arctic operating
procedures. It may also be necessary in extremely cold or hot climates to use a
different viscosity oil which is better adapted to adverse conditions. Contact the
nearest oil supply representative for suggested procedures.
CHEVRON Clarity AW46 hydraulic oil is available from J&M in five gallon cans.
See SECTION VIII - ORDERING PARTS, page VIII-48.
H. DRAINING AND FILLING HYDRAULIC OIL RESERVOIR
1. The Hydraulic reservoir is drained by removing a plug on the bottom of the
reservoir.
2. The hydraulic reservoir is filled by the manual pump mounted on the back
(engine side) of the reservoir. All oil is pumped to the reservoir through the
return filter (F2) to insure no dirt enters the hydraulic system.
IV-8
