3-37
BLEEDING THE PARKING BRAKE:
If the parking brake hydraulic lines are disconnected for any reason, the lines will have to
be bled. This is done at three points in the system: the pressure switch hose connection,
the brake caliper bleed screw and the intensifier bleed screw. The bleeding must be done
with the engine running and the parking brake switch in the OFF position. It may require
several repetitions to remove all of the air. In between each repetition, turn the brake ON
for about 30 seconds.
ADJUSTING THE PARKING BRAKE
Before working on the parking brake, set the outriggers or chock the wheels to prevent
rolling. Release the parking brake. Find the adjustment bolt on the front of the brake
caliper. Turn the adjustment bolt counterclockwise until loose. Slip a 0.012 (0.3 mm) inch
feeler gauge between the disk and brake pad. Turn the adjustment bolt clockwise until the
feeler gauge will just slip out.
TRANSMISSION TROUBLESHOOTING
If the transmission does not function properly, there are several simple checks that may
reveal the cause. Try these first, and an unnecessary service call may be avoided.
NOTE: FOR TRANSMISSION SERVICE OR OVERHAUL WHICH IS BEYOND THE
SCOPE OF THIS MANUAL PLEASE CALL YOUR BRODERSON DEALER OR THE
BRODERSON SERVICE DEPARTMENT TO HAVE A FUNK MANUFACTURING
COMPANY SERVICE REPRESENTATIVE CONTACT YOU.
1.
Check the transmission oil. High or low level can cause problems. If air bubbles are
in the oil and the oil level is not too high, there may be a leak in the suction line of the
transmission pump.
2.
Check the parking brake. With the ignition switch on, move the brake switch from ON
to OFF. The brake indicator light should go from ON to OFF. If you suspect that the
brake is dragging, raise the crane up on the outriggers, put the machine in third gear
and spin the tires. If the disk is hot, the brake is dragging. Adjust the brake by the
above procedure. If the brake still does not release, and there is no electrical
problem, the cause may be low pressure in the transmission control circuit.
Transmission pressure is approximately 260 psi (18 bar). Brake release pressure out
of the intensifier is approximately 1300 psi (90 bar). It takes approximately 1300 psi
(90 bar) to completely release the park brake.
3.
Transmission overheating may be caused by plugged radiator fins or using too high a
gear.
4.
Check the fuses under the dash that supply power to the shift lever. If the
transmission fails to shift, the engine fails to crank when in neutral, or the back-up
alarm fails to operate, check the three inline fuses located under the right-hand side
of the dashboard. See the wiring diagram in the Parts Manual for the wire color,
capacity and function of the fuse. Replace only with fuses of the specified capacity.
Shift solenoid damage could result with use of larger fuses. If fuses continue to fail,
check for a short circuit in the transmission harness.
Summary of Contents for RT-300-2G
Page 6: ...1 2 DIMENSIONAL DATA Courtesy of Crane Market...
Page 7: ...1 3 RT 300 2G TURNING DIMENSIONS Courtesy of Crane Market...
Page 16: ...Courtesy of Crane Market...
Page 24: ...2 8 Courtesy of Crane Market...
Page 33: ...2 17 CAPACITY CHART FOR RT 300 2G Courtesy of Crane Market...
Page 34: ...2 18 CAPACITY CHART FOR RT 300 2G METRIC Courtesy of Crane Market...
Page 55: ...3 9 Courtesy of Crane Market...
Page 66: ...Courtesy of Crane Market...
Page 67: ...Courtesy of Crane Market...
Page 88: ...Courtesy of Crane Market...
Page 89: ...Powered by TCPDF www tcpdf org Courtesy of Crane Market...
