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7-86
62-11039
Alarm
NO.
Steps
ALARM / CAUSE
CORRECTIVE ACTION
P174 CHECK LOW SPEED RPM
•
TRIGGER–ON: With speed relay turned off (speed solenoid de--energized), engine speed is NOT
between 1350 and 1580 rpm. If rpm sensor alarm is active, this test will be skipped.
•
UNIT CONTROL: Engine and standby operation: pre trip will fail and display “PRE TRIP FAIL AND
•
UNIT CONTROL: Engine and standby operation: pre--trip will fail and display “PRE--TRIP FAIL AND
COMPLETED”.
•
RESET CONDITION: Auto Reset if pre--trip mode is started again, or alarm may be manually reset via
keypad or by turning the unit off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the
alarm(s). (See Note 1) Operate the unit through the appropriate modes to see if any active alarm occurs. Continue
with the steps below as necessary.
1.
Verify That Correct Model Number Is Selected
a. Compare model number from unit I.D.
label and model number in micro Data
List.
The model numbers must be the same.
2.
Check Speed Solenoid & Linkage
a. Check speed solenoid plunger
Must move in and out freely
b. Check engine speed arm & linkage
Must move freely
3.
Force Low Speed Operation
a.Change setpoint to within
0.5
°
(
0.3
°
C) of box temperature.
Unit will run in low speed. RPM must be within range
shown above for each specific model. Adjust speed
linkage as needed.
b. Check operation of Speed Relay LED LED 27 must be OFF
c. Check voltage to speed solenoid
Must be 0 VDC
4.
Check Engine Air-intake System
a. Check air filter indicator
Flag must not be visible.
b. Inspect air intake system
Hoses & tubes in good condition.
No kinks or restrictions
5.
Check Engine Exhaust System
a. Inspect the exhaust system
Must be clear and unobstructed
6.
Check Engine RPM
a. Check actual engine RPM using hand
held tachometer
Refer to Section 2.9
Adjust engine linkage setting as needed.
b. Compare actual RPM with those
shown on display.
Both readings within
±
50 RPM
Summary of Contents for VECTOR 1800 MT
Page 1: ......
Page 2: ...OPERATION SERVICE MANUAL for VECTOR 1800 MT Trailer Multi Temp Refrigeration Units ...
Page 19: ...1 5 62 11039 1 3 SAFETY DECALS ...
Page 20: ...1 6 62 11039 62 03958 00 Heat Warning 62 03957 01 High Voltage 62 60280 00 Standby Safety ...
Page 21: ...1 7 62 11039 ...
Page 303: ...10 1 62 11039 ...
Page 310: ...10 8 62 11039 BASED ON ENGINEERING SCHEMATIC 62 60926 REV G NEXT SHT ...
Page 311: ...10 9 62 11039 FROM PREVIOUS SHT ...