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Note:
Do NOT attempt to repair the valve assembly. A special tool is required to align the valve motors, the valve
bodies, and the valve plate, and this alignment is performed only at the manufacturer. If a single component on the
valve assembly has failed, replace the entire valve assembly.The only repair allowed to the valve assembly is to
replace valve posts and bearings, if needed. The only maintenance allowed to the valve assembly is to clean the
silicone grease off the valve body/housing body or valve posts/bearings and lubricate with new grease, if needed.
Table 4-3: Possible valve mechanical failures
Symptom
Possible Solution
Slow valve movement
Clean and lubricate valve body with silicone valve grease as needed. The valve
bodies and o-rings should have clean grease that is able to lubricate during
movement. When the grease is too old or contaminated there can be an
increase in friction, which can draw too much current through the valve motor
and lead to a valve fault. Increased friction could also slow the valve rotation
movement and create a timeout failure when moving between positions.
Valve bearing does not rotate
Clean and lubricate valve bearing with silicone valve grease as needed. The
valve posts are lubricated with valve grease and should rotate freely. Check
spare parts for the correct part number for the silicone valve grease. The valve
posts require tightening to a torque value of 17.0 in·lb.
Valve System Electrical Failure Symptoms
This section describes common electrical failure symptoms for the valve system.
Table 4-4: Possible valve electrical failures
Symptom
Possible Causes
Valve motor repeatedly rotates back
and forth
The valve is trying to find a position, and if the position sensors do not report all
three valve positions the following list could be possible failures:
• Valve CCA position sensors
• Intermittent connection or wire between position sensor and control or
safety CCAs
• Control or safety CCA not processing the position sensor signal
Valve motor rotation is stalled, slow,
or stuttering
• Motor driver CCA power is low or intermittent
• Valve motor or cable/harness is failing
• Bad valve enable or valve direction bit (if stalled or stuttering)
• Intermittent connection or wire between valve motor and motor driver CCA
• Debris or insufficient valve grease between valve housing and valve body
Troubleshooting
4-8
Trima Accel
®
Automated Blood Collection System • Service Manual
Содержание Trima Accel
Страница 1: ...Trima Accel Automated Blood Collection System Service Manual...
Страница 2: ...Trima Accel Automated Blood Collection System Service Manual Part No 777095 548 2015 09...
Страница 10: ...1 Operational Description Trima Accel Automated Blood Collection System Service Manual 1 1...
Страница 62: ...2 System Description Trima Accel Automated Blood Collection System Service Manual 2 1...
Страница 100: ...Linear Actuator System Trima Accel Automated Blood Collection System Service Manual 2 39...
Страница 133: ...System Description 2 72 Trima Accel Automated Blood Collection System Service Manual...
Страница 134: ...3 Software Description Trima Accel Automated Blood Collection System Service Manual 3 1...
Страница 261: ...Software Description 3 128 Trima Accel Automated Blood Collection System Service Manual...
Страница 262: ...4 Troubleshooting Trima Accel Automated Blood Collection System Service Manual 4 1...
Страница 288: ...5 Maintenance and Calibration Trima Accel Automated Blood Collection System Service Manual 5 1...
Страница 303: ...Maintenance and Calibration 5 16 Trima Accel Automated Blood Collection System Service Manual...
Страница 304: ...6 Specifications Trima Accel Automated Blood Collection System Service Manual 6 1...
Страница 333: ...Specifications 6 30 Trima Accel Automated Blood Collection System Service Manual...
Страница 339: ...Index 6 Trima Accel Automated Blood Collection System Service Manual...