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MODEL 220
HYDRAULIC
IMPACT HAMMER
IV.
MAINTENANCE AND ADJUSTMENTS
I.
HYDRAULIC OIL (CONTINUED)
THIRD Preference Group:
BORON
CITGO
CONOCO
EXXON
GULF
SUN
TEXACO
UNION
Whenever oils from the second preference group are used, it is necessary to test
the oil more often to insure that viscosity remains within recommended limits while
in service. Using oils from the third preference group requires even a more
discerning inspection than use of oils from the second group.
The recommended oils were chosen based on the hydraulic system operating
temperature range being 5°F (-15°C) (cold ambient start-up) to 160°F (71°C)
(maximum operating).
When operating in arctic conditions, it is recommended to use an immersion heater
to pre-heat the oil prior to starting .
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.
J. CAPACITIES
1. Diesel Engine Crankcase
2. Hydraulic System (Reservoir)
3. Fuel Tank Sub-Base (Diesel)
4. Engine Cooling System
K. 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 into the reservoir through the
return filter (F2) to insure no dirt enters the hydraulic system.
Energol HLP46
A.W. Hydraulic 46
Super 46
Nuto H46
Harmony 46AW
Sunvis 846
Rando HD AZ46
Unax AW46
Contact J&M for other arctic operating
21
275
130
40
IV-7
Quarts
Gallons
Gallons
Quarts
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