Veris-technologies MSP3 - Operating Instructions Manuel d'utilisateur télécharger pdf (Page 106)

Pub. #OM17-MSP3

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Procedure #13: Troubleshooting Sampler Cylinder Hydraulics

The Veris pH module uses electro-hydraulics to perform the cycling functions. If the sampling shoe

hydraulic cylinder is not functioning properly, the cause of the problem must be traced to either the

electronic or the hydraulic side. This Procedure will guide you through the steps necessary to

identify the problem when the sampler cylinder in manual mode is not moving or only moves in one

direction. An overview of this procedure is shown in Figure13.1.

Figure 13.1 Flowchart for trouble-shooting sampler hydraulics.

1. If cylinder doesn’t move at all in manual mode, check hydraulic flow. Does main lift

cylinder function? If not, check tractor hydraulic lever position. If necessary, check flow with

pressure gauge.

2. Inspect LED’s on External Controller circuit board. Remove metal plate covering external

controller and inspect the solenoid LED lights, as shown in Figure 13.2. Do not remove clear lid

at this time. The LED’s on the UP circuit should light when the sampler up-down switch is

raised and the LED’s on the down circuit should light when the manual up-down switch is

lowered. If the four LED’s on the solenoid circuit do not light in that sequence, see Procedure

#1 to test power inside External Controller.

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Veris-technologies MSP3 - Operating Instructions Manuel d'utilisateur Page 106