Service Manual

325/328 Excavator

Operation and Maintenance Manual 42

ATTACHMENTS (CONT’D)

Auxiliary Hydraulics

Figure OI-93

Press the Auxiliary Hydraulics button on the right console

(Item 1) [Figure OI-93].

Figure OI-94

Move the switch (Item 1) [Figure OI-94] on the right

control lever to the right or left to direct fluid flow to an

attachment such as a breaker or hydraulic clamp.

Press the switch (Item 2) [Figure OI-94] on the front of

the handle to provide constant flow to the female

connector.

NOTE: Press the switch (Item 1) [Figure OI-94] to the

left while

pressing the switch on the front of the

handle to provide constant flow to the male

connector.

Press the switch (Item 2) [Figure OI-94] a second time to

stop auxiliary flow to the quick connectors.

Relieving Hydraulic Pressure

Stop the engine and turn the key to ON (Standard) or

press ENTER CODE Button (Keyless).

Press AUX HYD Button (Item 1) [Figure OI-93] and then

move the switch (Item 1) [Figure OI-94] to the right and

left several times.

Return To Tank Valve (If Equipped)

Figure OI-95

The return to tank valve is located under the right side

cover.

Remove the spool lock (Item 1) [Figure OI-95] and push

the spool in to direct auxiliary return hydraulic fluid to the

reservoir.

Pull the spool out, and install the spool lock (Item 1)

[Figure OI-95] for two-way hydraulic auxiliary flow

operation.

P16616

P-42157

P-49178