FT4867

MQR 7621-1684
Replacement of Hydraulic Oil Level Sensor
 Field Instructions Rev00
14/04/2020
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 the replacement of the hydraulic oil level sensor
ITEM
NOVA PN
1
N99760
SENSOR LEVEL HYDRAULIC
1
2
N37086
THREAD SEALANT WHITE
2 ml
3
DQT, , CONFIDENTIAL
Date created: Latest update:
DESCRIPTION
G5007994 CABLE TIE
QUANTITY
1
MQR-1684 – Hydraulic Sensor Location
Engine compartment
Field Instructions
1. Open the engine compartment rear door to access the hydraulic tank (see figures
#2 and #3).
2. Cut cable tie and 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 – Replacement of the Hydraulic Oil Level Sensor
3. Apply a bead of Loctite 565 thread sealant (P/N N37086) onto male threads of the
new sensor starting two threads from the end (see figure #4).
4. Unscrew and remove the existing oil sensor from the hydraulic oil tank.
Thread Sealant
Figure 4 – Hex Head Plug
DQT, , CONFIDENTIAL
Date created: Latest update:
MQR-1684 – Replacement of the Hydraulic Oil Level Sensor
5. Use a clean rag or cloth to catch any fluid that may escape the hydraulic oil tank sensor
threaded hole.
6. Immediately insert the new sensor into the hole and quickly fasten it finger tight. Torque to 2
turns past finger tight using an appropriate wrench. The recommended installation torque is
9Nm. (There is no specific mounting orientation to respect).
7. Apply torque seal bead once tightened.
8. Reconnect electrical connector and tie-wrap to existing support.
9. Bus can be returned to service.
DQT, , CONFIDENTIAL
Date created: Latest update: