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5.1.4 Installation of Oil Pressure Sensor
1. Installation Position
The upper oil connecting port and lower oil connecting port of
arm-lifting oil cylinder are the installation positions of oil
pressure sensors.
Suggestion: Install the oil pressure sensors on the arm-lifting
oil cylinder which is at the same side that the weighing
indicator installed on.
2. Safety Precaution
Using a stable and strong base to support the bucket of the
loader for avoiding accidental injury.
In the process of dismounting and mounting, the wheel loader
should be kept at flameout state.
Put a bucket under the oil connecting ports that will be
dismounted for oil collecting.
If the wheel loader has worked for a long time, the oil
temperature in the bucket-lifting cylinder will be very high.
Please let the wheel loader at flameout state for some time
before dismounting to avoid scalding.
Before dismounting the oil connecting port of the upper oil
chamber, let the bucket-lifting action bar stay at the position of
‘LIFT’ for making the upper oil chamber connect with main oil
tank and relief pressure.
Before dismounting the oil connecting port of the lower oil
chamber, let the bucket-lifting action bar stay at the position of
‘FALL’ for making the lower oil chamber connect with main
oil tank and relief pressure.
When somebody stays in driving cab, do not stay under the
wheel loader for avoiding accidental injury.
3. Installation
Wrap some sealing ribbons on the screw of oil pressure sensor
avoid oil leakage, and install it on the three-way joint firmly.
Fix the three-way joint [thickness: 24mm] and the oil tube
connector on the arm-lifting oil cylinder by the lengthened
screw rods which is about 24mm longer than original screw
rods.
4. Check Oil Passage
Start wheel loader, and lift the lift-arm and bucket with
accelerating for several times.
Check if there is the phenomenon of oil leakage at the oil
connecting ports.
Only after the welding work finished, it’s allowed to install Oil
Pressure Sensors and Proximity Switch for avoiding damage.
