Star EV BN72-11-AC-D Owner'S And Service Manual Download Page 20 | Manualshive

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4. Possible reason and troubleshooting for malfunctions of mechanic system.

System

Malfunction

Possible Reason

Troubleshooting

Brake system

Braking drag

Brake pedal has no free travel

Adjust

Clearance between brake shoe and drum is too

small or releasing spring is disabled

Adjust or change

Piston of wheel cylinder is ineffective

Check or change

Piston of master cylinder is ineffective

Change spring

Parking brake is ineffective

Change spring

Braking noise

Shoes distort

Change

Brake facing wear out

Change

Brake drum breach, scraped to uneven

Change

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Summary of Contents for BN72-11-AC-D

Page 1: ...Owner s Manual and Service Guide Enclosed Bus BN72 14 AC D and BN72 11 AC D Wheelchair Accessible...

Page 2: ...instructions will help you to obtain maximum enjoyment from your new Star EV If you have any questions about the operation or maintenance of your Enclosed Bus please consult your Star EV dealer Read a...

Page 3: ...Safety Maintenance Battery maintenance Traction motor maintenance Speed controller maintenance Brake system maintenance Lubrication General maintenance notes Periodic maintenance Storage Troubleshoot...

Page 4: ...Rear Suspension Integral rear axle coil spring non independent suspension hydraulic shock absorber Controller Power 550 A Curtis AC controller Steering System Rack and pinion power steering Top Speed...

Page 5: ...lerate the vehicle F R switch This switch is a three position button Depressing the upper part F makes the vehicle move forwards while depressing the lower part R makes the vehicle move backwards and...

Page 6: ...first before selecting Forward or Reverse on F R Button the vehicle will not run Stopping the vehicle 1 Step Service Brake Pedal to decelerate the vehicle until it stops completely and shift F R butto...

Page 7: ...ff streets unless it is allowed The vehicle cannot be overloaded or the motor will be damaged An over loaded vehicle can lose control and its life will be shortened Unqualified persons are prohibited...

Page 8: ...mps to the terminals and thinly coat them with petro leum jelly Vaseline to prevent corrosion WARNING Before you disconnect any battery cable from any terminal on the battery always remove the power b...

Page 9: ...s keep the doors open Lift the seat bottom to keep the battery compartment open to the air Watering Flooded batteries need water More importantly watering must be done at the right time and in the rig...

Page 10: ...e voltage and gravi ty checks will not only show the state of charge but also help spot signs of improper maintenance such as undercharging and over watering and possibly even locate a bad or weak bat...

Page 11: ...ly previous to testing Batteries in conditions 1 4 should be taken to a specialist for further evaluation or retired from service Open Circuit Voltage Test For accurate voltage readings batteries must...

Page 12: ...ery terminals with torque of 95 105 lbs in 10 7 11 9 N M Make sure there is nothing else between the battery cable lug and battery terminal post WARNING When working with the battery DO NOT put wrench...

Page 13: ...sh and its wires get hot Big sparks of the brush poor contact between brush and soft wires The brush is noisy The surface of the commutators is not smooth Speed Controller Speed Controller Maintenance...

Page 14: ...ed immediately Dust should be cleaned with low pressure air The electric contactors easily become hot if their mutual contact is not in good condition so special attention should be paid regularly to...

Page 15: ...checks should be performed with the power off Above checks shall be carried out once every 3 months after the power is turned off the wave filter capacitor in the controller unit should continue disch...

Page 16: ...e replaced DC motor only Check if the accelerator pedal works well and if it can be released freely and automatically Chassis and body Check if the brake drum and shoe Check if the hand brake function...

Page 17: ...tled mode to diagnose and eliminate malfunctions During main taining and checking we suggest you first listen then look and feel Below is the diagnoses and maintenance of some common malfunctions 1 Th...

Page 18: ...n F R switch failure Change Controller Failure Change 4 Possible reason and troubleshooting for malfunctions of mechanic system System Malfunction Possible Reason Troubleshooting Transmission system A...

Page 19: ...ock absorber is abnormal Change Front suspension is loose Change Abnormal tire fray Tire pressure is abnormal Inflate Toe in is improper Adjust Drum bearing loose Change U type bolt of leaf spring is...

Page 20: ...e travel Adjust Clearance between brake shoe and drum is too small or releasing spring is disabled Adjust or change Piston of wheel cylinder is ineffective Check or change Piston of master cylinder is...

Page 21: ...21 6 Electrical Diagrams...

Page 22: ...as well as technical description on the ba sis of existing data At the same time JH Global reserves the right to alter the content of this manual and this manual is subject to change without prior not...

Page 23: ...23...

Page 24: ...STAR EV a brand of JH Global Services Inc 378 Neely Ferry Road Simpsonville SC 29680 www starev com...

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