Pattern Change (Sae/Bhl) Valve; Return Flow Selector Valve - SANY SY35U Operation And Maintenance Manual

Machine Controls

Pattern Change (SAE/BHL) Valve

NOTICE!
Shut the engine down before adjusting the pattern change (SAE/BHL) valve. Failure to follow
this notice could damage the machine or cause it to operate improperly.
The pattern change (SAE/BHL) valve changes control of the boom and arm from one joystick to the other.
To change the operation mode, perform the following steps:
1. Turn the engine off.
2. Insert the key in the latch and open the fuse access
door, beneath the operator seat. See "Fuse Access
Door" on page 5-27.
3. Unscrew the wing nut (1) until it is free of the threaded
hole.
4. Rotate the bar (3) to the desired mode position.
5. Tighten the wing nut into the threaded hole (2) and
tighten securely.
6. Close the fuse access door and lock the door.

Return Flow Selector Valve

The return flow selector valve (1) has a one-way position
(3) or a two-way position (2) for operating optional
equipment. It is located on top of the hydraulic tank.
A variety of optional one-way and two-way flow
equipment is available for use on this machine. A hydraulic
breaker is an example of one-way flow equipment. A tilt
bucket is an example of two-way flow equipment.
3-18
Operation and Maintenance Manual — 0120
SY35U Excavator OMM
1
3
Fig. 3-28
1
3
Fig. 3-29
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0003066
2
0003772
SANY