MAINTENANCE
7-11
HYDRAULIC SYSTEM
IMPORTANT: Hydraulic equipment such as hydraulic
pumps, control valves, and relief valves
have been adjusted at the factory. Do
not attempt to disassemble or turn the
adjusting screws, as they are very diffi-
cult to readjust.
Consult your authorized dealer if any
trouble should occur.
1. Oil from the main pumps flows through the control
valves to the cylinders and motors. Most return oil
from the control valves flows back to the hydraulic oil
tank via the full-flow filters; a small amount returns via
oil coolers directly. High pressure strainers are pro-
vided in the pump delivery lines between the pumps
and control valves.
2. The solenoid valves actuated by the electric control
levers/pedals send pilot oil from the pilot pumps to
the control valves, moving their spools. This spool
movement routes the pump delivery oil to the cylin-
ders and motors.
3. Relief valves of sufficient capacity are provided in the
control valves, full-flow filters and the pilot and oil
cooler circuits in order to protect each circuit from
abnormally high pressure.
4. The excavator is equipped with an accumulator in the
pilot oil line which makes it possible to operate the
front attachment for a few seconds after the engine
has stopped. The accumulator is charged with high
pressure gas; do not attempt to remove or disassem-
ble it, and do not expose the accumulator to flame.
5. The excavator is equipped with an independent oil
cooler and circulation pump for the pump transmis-
sion, which functions to cool pump transmission oil.
Содержание EX 3600-6
Страница 38: ...SAFETY SIGNS S 29 SS3091469 M146 07 080 ...
Страница 39: ...SAFETY SIGNS S 30 SS 442 M146 01 022 SS 445 SS 688 1 SS 446 SS 2835 2 SS 742 Loading Shovel 1 2 ...
Страница 40: ...SAFETY SIGNS S 31 SS 410 SS 2835 SS3108517 M18G 01 011 ...
Страница 41: ...SAFETY SIGNS S 32 SS 413 M146 01 024 M146 01 025 SS4193223 M146 01 025 ...
Страница 42: ...SAFETY SIGNS S 33 SS 449 M146 01 027 SS 710 SS 2836 SS 3091472 SS 2837 ...
Страница 43: ...SAFETY SIGNS S 34 MEMO ...
Страница 89: ...OPERATOR S STATION 1 46 MEMO ...
Страница 107: ...OPERATING THE ENGINE 3 16 MEMO ...
Страница 119: ...DRIVING THE MACHINE 4 12 MEMO ...
Страница 139: ...OPERATING THE MACHINE 5 20 MEMO ...
Страница 166: ...MAINTENANCE 7 27 4 Grouped Grease Fittings 4 Arm Ñ Lubrication Points M146 07 085 4 ...
Страница 169: ...MAINTENANCE 7 30 4 Grouped Grease Fittings 4 Arm Ñ Lubrication points M18M 07 036 4 ...
Страница 283: ...MAINTENANCE 7 144 MEMO ...
Страница 285: ...MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS 9 2 MEMO ...
Страница 303: ...SPECIFICATIONS 12 4 MEMO ...