Single action with one pump flow control or two pump flow control is available for implements such as hydraulic hammers.
Double action with one pump flow control or two pump flow control is available for implements such as hydraulic shears.
Manually controlled ball valves are provided in the main lines and the pilot lines.
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| Illustration 1 | g00352612 |
Before implement hydraulic circuits are serviced, place the machine in the servicing position and stop the engine.
Place each of the ball valves in the correct position. To determine the correct position, reference the requirements for the implement and Table 1 .
Use the manual lever to turn the ball valve. Make sure that you fully turn each ball valve until the ball valve stops.
Never use the manual lever as a step when the manual lever is attached to the ball valve. Remove the manual lever from the valve after the valve is adjusted.
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| Illustration 2 | g00420472 |
(1) Ball valve assembly (2) Ball valve assembly (3) Ball valve assembly (4) Ball valve assembly (5) Main control valve (6) Front of the machine (7) Boom | |
Valve Locations
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| Illustration 3 | g00420473 |
(1) Ball valve assembly (A) One pump flow (B) Two pump flow | |
Ball valve (1) is located in front of the main control valve.
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| Illustration 4 | g00420476 |
(2) Ball valve assembly (C) Single action (D) Double action | |
Ball valve (2) is located in front of the main control valve.
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| Illustration 5 | g00420477 |
(3) Ball valve assembly (C) Single action (D) Double action | |
Ball valve (3) is located in front of the main control valve on the right side.
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| Illustration 6 | g00420518 |
(4) Ball valve assembly (C) Single action (D) Double action | |
Ball valve (4) is located on the back of the boom.
| Implement Circuits and Valve Positions | |||||
| Valve Positions | Implement Circuits | ||||
| Single Action (Hydraulic Hammer) | Double Action (Hydraulic Shear) | ||||
| One Pump Flow | Two Pump Flow | One Pump Flow | Two Pump Flow | ||
| Ball Valve (1) | A | B | A | B | |
| Ball Valve (2) | C | C | D | D | |
| Ball Valve (3) | C | D | C | D | |
| Ball Valve (4) | C | C | D | D | |