Cylinder Length Sensor; Removal - JLG 1850SJ Service And Maintenance Manual

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SECTION 5 - BASIC HYDRAULIC INFORMATION & HYDRAULIC SCHEMATICS

5.4 CYLINDER LENGTH SENSOR

Both the jib lift cylinder and the platform level cylinder utilize

a cylinder length sensor which communicates with the JLG

control system. These sensors can be removed from without

the cylinder being disassembled.

Figure 5-122. Cylinder Length Sensor

1. Lower the platform to the ground or on suitable block-

NOTE: The jib lift cylinder weighs approximately 186 lbs.(84 kg)

and the platform level cylinder weighs approximately

76 lbs. (34 kg)

2. Support the weight of the jib cylinder and remove the

bolt and keeper pin that secure the cylinder barrel

retaining pin. Remove the pin.

3. Lower the cylinder to a horizontal position to gain

access to the rear of the cylinder.

4. Place a catch pan under the cylinder to capture any oil

that may drain out of the cylinder. If the cylinder is

removed from the machine, drain the oil out of the cylin-

5. Remove the plug that is over the setscrew that secures

the sensor in place.

6. Using an allen wrench, remove the setscrew.