. OPERATION MACHINE OPERATIONS AND CONTROLS Hydraulic Circuit NOTICE procedure for the 3 - 104 Hydraulic Circuit Conn When c onnecting the attachment, connect the hydraulic circui t as 1. Check that the stop valve is at the LOCK position, then remove the plug. Be careful not to lose or damage any part that is removed. 1. Check that the stop valve is at the LOCK po sition, then remove the plug. Be careful not to lo se or damage any part t hat is removed 2. Connect the pipi ng for the attachment provided by the . the attachment maker The dimensions o n the stopper valve side are as indicate d at right.
For those o manufacturer of at n the attachment side, tachment and determine confer with each . 3. Afte 1) r connecting th Start the engin e piping, bleed the air fr e, referring to "STARTIN om the circuit. G ENGINE (PAGE 2) 3-74)", and ru n it at low idling for t he subsequent 10 k. minutes. Then proceed to the next wor 2) Run the engin e at low idling until the ai r in the attachment circuit is compl pedal repeated etely removed, then oper ly (approx. 10 times) to ate the attachment bleed the air. I f th e at attachment itself, follow t he specified procedure to b 3) After completi ng the bleeding of the ai r, stop the engine, and wait for at least 5 minutes before starting operations.
This will releas e the bubbles in the oil i nside the tank. 4) Check that the re is no oil leakage, and wipe off any oil that has been spille d.