SIBS Fuso Canter, Workshop Manual

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MAN-059 8 FEB 2017
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3. ATF warning light on control unit on.
a. Vehicle parked on steep incline causing sensor to read incorrect fluid level.
i. Park vehicle on flat surface and check ATF warning light if off.
b. Low fluid level in SIBS® pump reservoir.
i. Top up reservoir with ATF Dexron III and check system for leaks.
4. Brake status LED is solid green and control unit is not responding.
a. Control unit is in ‘ SIBS® 3’ mode.
i. Conduct a master reset of the control unit by holding the manual release button and cycling the E-stop
button 3 times within 5 seconds. All lights on the control unit will flash once to confirm reset was successful
and all settings have been cleared.
5. Brakes drag/brakes not fully releasing after operation.
a. Control unit may have learned the incorrect release pressure (retractor bolts left in place during initial set-up).
i. Perform a master reset of the control unit.
b. EMMA™ piston seals bypassing or seals contaminated & swollen preventing them from retracting.
i. Inspect brake for ATF leakage around rear of spring cover.
ii. Strip brake, inspect components. Replace seals as required.
c. Insufficient hydraulic pressure to release EMMA™ brake.
i. Place vehicle on hoist if required and release EMMA™ brake.
ii. Carryout pressure check in EMMA™ circuit should be 850psi, if pressure is insufficient change pressure
switch. If pressure still low, EMMA™ pump may be at fault.
iii. Strip brake & inspect.
6. SIBS® park/emergency brake applies unexpectedly.
a. Faulty wiring causing intermittent loss of continuity.
i. Inspect/test 12 volt (or 24 volt) ignition switched & 12 volt (or 24 volt) constant supply. Ensure all
connections are clean, secure and free of corrosion.
ii. Check door switches.
iii. Check seatbelt switches.
iv. Check oil-pressure switches.
7. SIBS® park/emergency brake is poor. Brake not holding on inclines.
a. Brake pads and/or rotor worn.
i. Check pad wear indicators. If pads below wear limit conduct a major service.
8. SIBS® park/emergency brake slow to apply
a. Brake pads worn.
i. Check pad wear indicators. If pads below wear limit conduct a major service.
b. SIBS® relief valve set too high.