Ft4867R1
Service Bulletin Details
Public Details for: Ft4867R1
Failures or intermittent low hydraulic light coming on in service. Removal of the hydraulic oil level sensor.
Models from 2019
2019 NOVA BUS LFS |
2019 NOVA BUS LFS ARTIC |
Models from 2018
2018 NOVA BUS LFS |
Models from 2017
2017 NOVA BUS LFS |
Models from 2016
2016 NOVA BUS LFS |
FT4867R1 Hydraulic level sensor defective Technical writer name Devanand First Level Parts (100% of 438 vehicles) Material Part Number SENSOR LEVEL HYDRAULIC CABLE TIE (8428098,99,8877976) N99760 G5007994 Manual section 09 Nb hours Level 1 0.25 hr 1 1 LOCTITE THREAD SEALANT WHITE Note: N37086 (LOCTITE THREAD SEALANT WHITE) 1 ea = 250ml 2 ml / Bus 876 ml for 438 buses 3.5~4 Tubes for entire campaign Client San Antonio Texas San Antonio Texas San Antonio Texas San Antonio Texas San Antonio Texas San Antonio Texas Capital Area Transportation Authority Michigan - CATA Capital Area Transportation Authority Michigan - CATA Halifax - Nova Scotia Halifax - Nova Scotia Halifax Nova Scotia Chicago Transit Authority - CTA - Illinois N37086 Order LA10 LA22 LA34 LA35 LB26 LB43 LC07 LC08 LB61 LB70 LC11 LB58 7621-1684 Disposal of parts Removed parts are: Shop Supply (100% of 438 vehicles) Material Part Number MQR QTY Discarded X Retained - When the retained check box is check, the parts must be retained and returned in accordance with the usual warranty procedure to be reimbursed, QTY 2 ml Road numbers 422 446 447 555 556 580 581 691 692 735 970 987 6012 6015 700 718 1277 1284 1285 1299 1300 1334 8325 8349 QTY Lang. Customer Target market Plant Config moteur Model VIN L82K9G9775628 L82K8G9775653 25 E US PLB TD 40 Us-Prv L82K8H9775654 L82K0H9775762 109 E US PLB TD 40 Us-Prv L82K0H9775857 L82K8H9775881 25 E US PLB TD 40 Us-Prv L82KXH9775882 L82K8H9775993 111 E US PLB TD 40 Us-Prv L82KXJ9776536 L82K6J9776579 44 E Us-Prv US TD 40 PLB L82K1J9776828 18 E US TD 40 L82K4J9776791 Us-Prv PLB S92J5K9777269 S92J5K9777272 4 E US TD 60 US-Prv PLB L82J7K9777278 L82J8K9777306 19 E US TD 40 US-Prv PLB L82J9J9776664 E CA TD 40 L82J6J9776671 8 PLB L82J4J9776829 L82J9J9776843 15 E CA TD 40 PLB L82JXK9777310 L82J5K9777344 35 E CA TD 40 PLB E US TD 40 L82J7J9776906 L82J8J9776946 25 US-Prv PLB Jean-Nicolas Fournier NR x x x x x x x x x x x x R1 x x x x x x x x x x x x R2 Digitally signed by Jean-Nicolas Fournier DN: cn=Jean-Nicolas Fournier, o=Nova Bus, [email protected], c=CA Date: 2020.08.12 12:57:04 -04'00' MQR 7621-1684 Removal Of Hydraulic Oil Level Sensors Field Instructions 18/07/2019 DQT, , CONFIDENTIAL Date created: Latest update: WARNING : Follow your internal safety procedures. A) VEHICLE PREPARATION STEPS: 1. 2. 3. 4. Park the vehicle on an even surface with transmission on neutral (N) and apply the parking brake. Set the Master Control Switch in STOP position (see figure 1). Before starting any work on the vehicle, make sure that the vehicle is completely and securely stationary. Disconnect the starting circuit on the control box at the rear of the vehicle and place the battery disconnect switch in OFF position. Figure 1 – Master Control Switch in STOP Position DQT, , CONFIDENTIAL Date created: Latest update: MQR-1684 - Bill Of Materials Items required for removal of hydraulic oil level sensor DEUTSCH (DT series) Connector ACTIV. ZIP-TIE SHRINK CAPPING CONNECTOR BRASS PLUG ITEM NOVA PN MFG PN 1 - 0444620 2 N37086 56541 3 N31229-04 DT06-3S-E008 4 N11681 114017 5 N25892-03 W3-S 6 N82227-13 ATUM-24/6-0-STK 7 N56339 T120R6TZK2 8 - 21348 DQT, , CONFIDENTIAL Date created: Latest update: DESCRIPTION MANUFACTURER QUANTITY COMMENTS PLUG M-NPT- 1/4 PARKER 1 HYDRAULIC TANK THREAD SEALANT WHITE LOCTITE 2 ml or 1 Tube per 125 Buses (250 ml/Tube) FOR THE THREAD PLUG 3-WAY CONNECTOR WITH BOOT ADAPTER DEUTSCH 1 MATING PLUG SEALING PLUG - DEUTSCH DEUTSCH 3 WITH MATING PLUG SECONDARY LOCK - DEUTSCH DEUTSCH 1 WITH MATING PLUG TE CONNECTIVITY 40mm HELLERMANN TYTON 1 TUBING HEATSHRINK DUAL WALL TEFZEL CABLE TIES LOCTITE SF 7649 PRIMER 4.5OZ. HENKEL 0.09 Oz TO ATTACH MATING CONNECTOR 1 Can per 60 buses MQR-1684 – Hydraulic Sensor Location Engine compartment Field Instructions Steps : 1. Open the engine compartment rear door to access the hydraulic tank (see figures #2 and #3). 2. Disconnect the hydraulic oil level sensor electrical connector (see figure #3). Oil Sensor Electrical Connector Figure 2 – Rear Door Compartment DQT, , CONFIDENTIAL Date created: Latest update: Figure 3 – Hydraulic Tank Location MQR-1684 – Removal of the Hydraulic Oil Level Sensor Hydraulic tank modification 3. Spray on an even amount of Loctite Thread Activator 7649 onto the threads of the brass plug (P/N 0444620). Allow to air dry. Next, apply a bead of Loctite 565 thread sealant (P/N N37086) onto male threads of hex head brass plug (P/N 0444620) starting two threads from the end (see figure #4). 4. Unscrew and remove the oil sensor from the hydraulic oil tank (see figure #5). (Return the removed hydraulic oil level sensor wire kit to Prevost.) Oil Sensor Location Thread Sealant Figure 4 – Hex Head Plug Figure 5 – Hydraulic Oil Tank DQT, , CONFIDENTIAL Date created: Latest update: MQR-1684 – Removal of the Hydraulic Oil Level Sensor Hex head plug installation 5. Use a clean rag or cloth to catch any fluid that may escape the hydraulic oil tank sensor threaded hole. 6. Immediately insert hex head brass plug into the hole and quickly fasten it finger tight (see figure #6). 7. Torque to 2 turns past finger tight using an appropriate wrench. 8. Apply torque seal bead once tightened. Figure 6 – Hex Head Plug Insertion DQT, , CONFIDENTIAL Date created: Latest update: MQR-1684 – Capping Connector Assembly DEUTSCH 10. DEUTSCH CONNECTOR SCENARIO (P/N N31229-04) A. Insert a secondary lock to prevent the mating seal from falling (P/N N25892-03). B. Seal each of the 3 cavities with a cavity plug (P/N N11681). C. Install 1.5 inch of heat shrink tubing (P/N N82227-13) over the capping connector shrink boot adapter located on the wire entry side. Then seal the connector end by pinching the heat shrink tubing with pliers while heating (see figure #9). D. Plug the capping connector on the mating harness #64 breakout (+EN-X64HF). Insert Cavity Plugs At This Connector End With Orientation Shown Secondary Lock Figure 9 – Deutsch Capping Connector Mating Seal DQT, , CONFIDENTIAL Date created: Latest update: No water intrusion is possible since the pinched heat shrink tubing is environmentally sealed with a melting adhesive liner MQR-1684 – Harness #64 Breakout Wiring Management DELPHI & DEUTSCH 11. Use a zip-tie (P/N N56339) to properly stow and secure harness breakout (+ENX64H□) as shown in the following pictures (see figures #10 and #11). Connector could be Deutsch or Delphi variant depending on build configuration. Figure 10 – Modified Harness #64 Breakout (+EN-X64H□) Figure 11– Modified Harness #64 Breakout (+EN-X64H□) Close-Up View Heat-shrunk capping connector not shown on the pictures above DQT, , CONFIDENTIAL Date created: Latest update: MQR-1684 – Harness #64 Breakout Wiring Management DELPHI & DEUTSCH 12. Remove the 10A circuit breaker (N11690.10) from the rear interior back panel (99) position +IB-CB99AK2 to disconnect the power feed to the sensor assembly. DQT, , CONFIDENTIAL Date created: Latest update: