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Unscheduled Maintenance

Date Test Miles Service Activity Downtime Hours
12-18-90 6069 Air leak in compressor line. Compressor line elbow tightened. 1.0 1.0
01-25-91 9318 No heat in driver's compartment for approx. 3 days. Connector plugged back in. 0.25 0.25
09-21-90 3083 3rd entrance door controller cover not operating. Latch repaired. 1.0 1.0
08-29-90 98 Nut came off windshield wiper. Replaced nut. 0.25 0.25
09-04-90 817 Roof top shroud bracket broke. Repaired/welded two brackets. 1.5 1.5
09-05-90 1088 Front door not operating properly. Replaced screws and made adjustments. 1.0 1.0
09-06-90 1294 Loose bolts and hangers on front, rear, and middle compartment panels. Reinstalled hangers & tightened bolts. 2.0 2.0
09-07-90 1472 Hinge on converter cover fell off. Replaced hinge. 0.5 0.5
09-08-90 1538 Roof top shroud brackets broke. Shrouds removed. 0.5 0.5
09-09-90 1999 Vultron brackets broke. Fabricated new brackets. 1.0 1.0
09-09-90 1999 Engine compartment door not latching. Repaired latch. 1.0 1.0
09-09-90 1999 Windshield bottom left cracked by stone. Watching for further cracking. 0.0 0.0
09-12-90 2181 Engine compartment door not latching. Door removed, repaired, & remounted. 3.5 3.5
09-18-90 2939 3rd entrance door controller cover not operating. Latch repaired. 2.0 2.0
09-18-90 2939 Converter box cracked. Repaired/brazed crack. 1.0 1.0
10-17-90 3791 Loose screws on inside panels; missing screws & washers on rear door. Tightened loose screws & replaced missing screws in door. 0.5 0.5
11-02-90 4153 Engine compartment door stop brackets failed. Stop brackets replaced. 0.5 0.5
01-14-91 7514 Hold down plate on battery box cracked. Crack repaired. 1.5 1.5
01-23-91 8797 Converter box brackets failed. Welded/replaced brackets. 0.5 0.5
01-23-91 8797 Broken converter box brackets caused damage to converter. Mock converter built to simulate actual converter. Approved by UMTA. 6.0 6.0
01-27-91 10055 Rear door latch assembly failed. Plate and rubber bumper repaired. 1.0 1.0
01-27-91 10055 Breather drip pan bracket failed. Bracket repaired. 0.5 0.5
08-28-90 65 Converter came loose from mounting brackets. Replaced insulator with wooden block as per mfr until new insulators are received. 2.0 2.0
08-30-90 280 Bolt found on test track; inspection of bus showed the bolt came from the converter insulator. Replaced insulator with wooden block until new one is received. 2.0 2.0
08-30-90 305 Electrical face panel fell out of compartment. Replaced stripped-out bolts, repaired wiring harness. 9.0 9.0
09-09-90 1999 Broken welds on electrical panel glides. Spop welds repaired. 3.0 3.0
09-11-90 2131 Electrical panel glide broken. Repaired. 1.0 1.0
09-14-90 2264 Ignition line to D-Dec; wire rubbed bare against fuel filter bracket. Insulation on wire repaired. 3.0 3.0
09-22-90 3246 Hinge fail light on; throttle shut down. Troubleshoot--reset switch #M4. 2.0 2.0
11-05-90 4153 Left tail light failed. Replaced tail light. 0.5 0.5
12-10-90 4708 Throttle shut down. Rear axle sensors adjusted; replaced high pressure accumulator bottle. 3.0 3.0
01-14-90 7514 Electric senders on differential failed. Both senders replaced. 2.0 2.0
01-15-91 7514 Worn cable in battery compartment. Repaired as per manufacturer. 0.5 0.5
01-15-91 7514 Circuit breaker board mounting came loose. Repaired and remounted component board. 2.0 2.0
02-20-91 14698 Power steering pump relay fell loose breaking wire. Relay remounted & wire repaired. 1.5 1.5
09-04-90 817 Oil leak in engine compartment. Tightened transmission oil line. 0.25 0.25
09-04-90 817 Broken inlet pipe to air cleaner. Pipe repaired. 0.25 0.25
11-02-90 4153 Traction motor mounts failed. Mounts/insulators replaced. 1.5 1.5
11-02-90 4153 Radiator mounts failed. Mounts replaced. 0.5 0.5
11-02-90 4153 Rear motor mounts failed. Mounts replaced. 2.0 2.0
12-13-90 5249 Air foil bottom of radiator failed. Air foil repaired. 0.5 0.5
01-02-91 6547 Traction motor bushings/insulators failed. Bushings/insulators replaced. 1.5 1.5
01-14-91 7514 Radiator mounts failed. Mounts replaced. 1.0 1.0
01-23-94 8797 Mode change modules on both sides of differential failed. Replaced both modules. 2.5 2.5
02-04-91 11343 Traction motor mounts failed. Motor mounts replaced. 1.5 1.5
09-22-90 3146 Exhaust elbow loose. Tighten connection. 0.5 0.5
11-06-90 4153 Exhaust pipe elbow failed. Replaced elbow. 1.0 1.0
12-13-90 5249 Muffler bracket failed. Bracket repaired. 1.5 1.5
01-23-91 8797 Exhaust elbow separated. Separation welded; elbow reinstalled. 1.5 1.5
09-18-90 2939 Hydraulic leak in chair lift. Repaired leak. 1.5 1.5
10-05-90 3526 Two nitrogen bottles failed. Installed new bottles, charged oil system & bled; road tested & checked for leaks. 9.0 9.0
10-23-90 4097 Four nitrogen bottles failed. Bottles removed; four new bottles installed; system charged & bled. 9.0 9.0
11-02-90 4153 Articulated joint cutting out on turns. Troubleshooting. 1.5 1.5
11-02-90 4153 Articulate joint cutting out on turns. Installed 2 cylinder controls; assisted factory rep. 9.0 9.0
11-16-90 4342 Low pressure accumulator leaking; low pressure in nitrogen bottles. Replaced failed nitrogen bottles. 3.5 3.5
12-07-90 4484 Inspection/repaires of articulate system by factory rep. Installed a larger elbow on oil sender; installed a new elbow and copper gasket on low pressure accumulator; recharged system & bled. 8.0 8.0
12-19-90 6149 Accumulator bottles failed. Bottles replaced, charged, lines bled. 5.0 5.0
01-27-91 10055 Bolt, washer, & nut missing from chairlift. Bolt, washer, & nut replaced. 0.25 0.25
01-02-91 6547 Intermediate shocks failed. Shocks replaced. 2.0 2.0
09-06-90 1185 Wooden blocks that replaced insulators split and fell out. Replaced wooden blocks; still waiting for insulators. 0.75 0.75
09-18-90 2939 U-bolts loose curb side 3rd axle. Removed wheel and retorqued U-bolts. 2.0 2.0
09-19-90 3083 Broken torque arm bolt, right rear. Broken stud drilled out and replaced. 4.0 4.0
10-17-90 3791 Left front and left rear leveling valves failed. Both leveling valves replaced. 1.0 1.0
12-13-90 5249 Front shocks failed. Shocks replaced. 0.5 0.5
12-16-90 5610 Torsion bar bracket broke. Replaced bracket. 6.0 6.0
12-18-90 6069 Sway bar, left, front end loose. Retorqued. 0.5 0.5
01-14-91 7514 Torsion bar bracket failed left side. Repaired bracket and reinstalled torsion bar. 2.0 2.0
01-23-91 8797 Upper torsion bar bracket and studs failed. Replaced torsion bar bracket; replaced studs. 1.5 1.5
01-27-91 10055 Torsion bar bolts came loose. Bolts retorqued. 0.5 0.5
01-30-91 10285 Front shocks failed. Front shocks replaced. 0.5 0.5
02-02-91 10829 Torsion bar bracket bolt loose. Bolt retorqued. 0.5 0.5
02-03-91 11074 Torsion bar bracket bolt broke and 2 are loose. Replaced/retorqued bolts. 0.75 0.75
02-10-91 12666 Torsion bar bracket bolt sheard off. Bolt drilled out, bracket retapped & reinstalled. 5.0 5.0
10-24-90 4105 During road test after replacing nitogen bottles, the right rear planetary failed (internal gears shattered). Bus towed to garage; started to remove hub and wheels. 6.0 6.0
10-29-90 4105 Right rear planetary failure. Company rep replaced planetary. 9.0 9.0
11-06-90 4153 Test drive after articulate repair; found right rear wheel loose. Pulled wheel--found metal shavings & marks on the wheel bearing. 3.0 3.0
11-05-90 4053 Failed planetary. Repaired planetary; replaced missing inner O-ring; tube rethreaded; installed new bearings & seal; reset sensor to 1.1mm. 8.0 8.0