. OPERATION EXPLANATION OF COMPONENTS PARKING BRAKE SWITCH WARNING This switch (8) is used to actuate and release the parking brake valve. 3 - 35 When p arking or leaving t he machine, alway s apply the par king brak (a): Pa e parking brake i (b): Tr e parking brake i When t he switch is set t o the PARKING position , the p arkin g brake pilot la mp lights up. to the PARKING position, if the gear shift When the switch is set shift lever is at any position other than N, the centra l warn ing lamp will flash a nd the alarm buz zer will sound. If the p ressure saved in the accumulator drops a nd go es below 5.4 MPa {55 kg/cm 2, 781 P SI}, t he brake and p arking brake are automatically applied.
For details of the me thod of releasin g the brak e, see " WHE N PARKING B RAKE HAS B EEN ACTUATE D IN EMERGENCY (PAGE 3- 131)" . When working at night, the symbol insid e the s witch l ights up regardless of the s elected posi tion of the switc REMAR K ngine is stopped with the parking brake switch at TRAVEL, the parking brake will be applied automatically If the e ngine is stopped with the parking brake switch at TRAVEL , the parking b rake wi applied automatically even t hough the parkin g brake switch is at TRAVEL. When starting t he engine again, oper ate the brake switch to PARKING, an d then move it b ack to TRAV EL to cancel the parking br ake.
NOTICE During loading operations , do not apply the parking brake. Apply the retarder brake