DA Form 7468-R Engine Generator Set Inspection Checklist

DA Form 7468-R - also known as the "Engine Generator Set Inspection Checklist" - is a Military form issued and used by the United States Department of the Army.

The form - often mistakenly referred to as the DD form 7468-R - was last revised on August 1, 2002. Download an up-to-date fillable PDF version of the DA 7468-R below or request a copy through the chain of command.

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ENGINE GENERATOR SET INSPECTION CHECKLIST
For use of this form see TM 5-694; the proponent agency is COE.
SECTION A - CUSTOMER DATA
1. PLANT/BUILDING
2. LOCATION
3. JOB NUMBER
4. EQUIPMENT
5. CIRCUIT DESIGNATION
6. DATE (YYYYMMDD)
7. TEST EQUIPMENT TYPE/BRAND AND CALIBRATION DATE
8. TESTED BY
SECTION B - EQUIPMENT DATA
9. MANUFACTURER
10. STYLES/S.O.
11. VOLTAGE RATING
12. kW RATING
13. CIRCUIT BREAKER SIZE/INTERRUPTING RATING
14. WET BULB TEMPERATURE
15. DRY BULB TEMPERATURE
SECTION C - VISUAL AND ELECTRICAL/MECHANICAL INSPECTION
16.
CHECK POINT
COND*
NOTES
CHECK POINT
COND*
NOTES
EXTERIOR OF EQUIPMENT
EQUIPMENT IDENTIFICATION
BRACING
COMPLETENESS OF ASSEMBLY
EQUIPMENT ROTATION
PROPER PHASE CONNECTIONS
CHECK OIL LEVEL
REFERENCE DRAWINGS
WORKING CLEARANCE
CHECK FUEL LEVEL
PROPER EQUIPMENT GROUNDING
ANCHORAGE
CHECK METERS/GAUGES
ALL FILTERS AND VENTS CLEAR
CHECK EQUIPMENT ENVIRONMENTAL
TIGHTNESS OF BOLTED CONNECTIONS
CLASSIFICATION
CHECK FOR PROVISIONS OF SPILL
VERIFY GOVERNOR AND REGULATOR
CONTAINER
CHECK VIBRATION
CONTROL SYSTEM
CHECK BATTERIES
CHECK FUEL FILTER
CHECK ALARM INDICATORS: PROPER
CHECK RADIATOR FLUID
COLOR FOR EACH FUNCTION
PROPER SYSTEM GROUND
SECTION D - ELECTRICAL TESTS
17. INSULATION RESISTANCE
A-GRD
B-GRD
C-GRD
A-B
B-C
C-A
@
V
POLARIZATION INDEX
RATIO = 10 MINUTE/1 MINUTE
DC OVERPOTENTIAL TEST
@
V
18. NOTES
1. PERFORM 5 MEASUREMENTS AT ONE MINUTE INTERVALS.
2. DC HIPOT MEASUREMENTS SHOULD BEGIN AT 20% OF MAXIMUM TEST VOLTAGE AND INCREASE IN EQUAL
INTERVALS.
MAX DC TEST VOLTAGE = R (2 x NAMEPLATE RATING) x 1.6
WHERE R = .8 FOR DC TEST ON INSTALLATION
WHERE R = .6 FOR DC TEST AFTER SERVICE
(TEST MEASUREMENTS SHOULD NOT EXCEED MANUFACTURER'S RECOMMENDATION)
PAGE 1 OF 2
DA FORM 7468-R, AUG 2002
APD LC v1.00
ENGINE GENERATOR SET INSPECTION CHECKLIST
For use of this form see TM 5-694; the proponent agency is COE.
SECTION A - CUSTOMER DATA
1. PLANT/BUILDING
2. LOCATION
3. JOB NUMBER
4. EQUIPMENT
5. CIRCUIT DESIGNATION
6. DATE (YYYYMMDD)
7. TEST EQUIPMENT TYPE/BRAND AND CALIBRATION DATE
8. TESTED BY
SECTION B - EQUIPMENT DATA
9. MANUFACTURER
10. STYLES/S.O.
11. VOLTAGE RATING
12. kW RATING
13. CIRCUIT BREAKER SIZE/INTERRUPTING RATING
14. WET BULB TEMPERATURE
15. DRY BULB TEMPERATURE
SECTION C - VISUAL AND ELECTRICAL/MECHANICAL INSPECTION
16.
CHECK POINT
COND*
NOTES
CHECK POINT
COND*
NOTES
EXTERIOR OF EQUIPMENT
EQUIPMENT IDENTIFICATION
BRACING
COMPLETENESS OF ASSEMBLY
EQUIPMENT ROTATION
PROPER PHASE CONNECTIONS
CHECK OIL LEVEL
REFERENCE DRAWINGS
WORKING CLEARANCE
CHECK FUEL LEVEL
PROPER EQUIPMENT GROUNDING
ANCHORAGE
CHECK METERS/GAUGES
ALL FILTERS AND VENTS CLEAR
CHECK EQUIPMENT ENVIRONMENTAL
TIGHTNESS OF BOLTED CONNECTIONS
CLASSIFICATION
CHECK FOR PROVISIONS OF SPILL
VERIFY GOVERNOR AND REGULATOR
CONTAINER
CHECK VIBRATION
CONTROL SYSTEM
CHECK BATTERIES
CHECK FUEL FILTER
CHECK ALARM INDICATORS: PROPER
CHECK RADIATOR FLUID
COLOR FOR EACH FUNCTION
PROPER SYSTEM GROUND
SECTION D - ELECTRICAL TESTS
17. INSULATION RESISTANCE
A-GRD
B-GRD
C-GRD
A-B
B-C
C-A
@
V
POLARIZATION INDEX
RATIO = 10 MINUTE/1 MINUTE
DC OVERPOTENTIAL TEST
@
V
18. NOTES
1. PERFORM 5 MEASUREMENTS AT ONE MINUTE INTERVALS.
2. DC HIPOT MEASUREMENTS SHOULD BEGIN AT 20% OF MAXIMUM TEST VOLTAGE AND INCREASE IN EQUAL
INTERVALS.
MAX DC TEST VOLTAGE = R (2 x NAMEPLATE RATING) x 1.6
WHERE R = .8 FOR DC TEST ON INSTALLATION
WHERE R = .6 FOR DC TEST AFTER SERVICE
(TEST MEASUREMENTS SHOULD NOT EXCEED MANUFACTURER'S RECOMMENDATION)
PAGE 1 OF 2
DA FORM 7468-R, AUG 2002
APD LC v1.00
SECTION D - ELECTRICAL TESTS (Continued)
VOLTAGE AND CURRENT MEASUREMENTS
19.
MEASUREMENT DESCRIPTION
VOLTAGE**
CURRENT**
A-N
B-N
C-N
A-B
B-C
C-A
A
B
C
N
G
20. LOAD TESTS AS A PERCENTAGE OF GENERATOR RATING
NO LOAD
25 %
75 %
100 %
110% (PRIME ENGINE ONLY)
A-N
B-N
C-N
A-B
B-C
C-A
A
B
C
N
G
21. NOTES
1. VOLTAGE MEASUREMENT TO BE MADE AFTER GENERATOR IS STARTED AND CONNECTED TO LOAD (CAN USE
LOAD BANK).
2. DURING COMMISSIONING OF GENERATOR SETS OR ANY EQUIPMENT, A REPRESENTATIVE OF THE
MANUFACTURING COMPANY OR SUPPLIER MUST BE PRESENT TO WITNESS AND/OR PERFORM THE TESTS.
3. ENGINE GENERATOR TESTING IS A VERY INTENSIVE PROCESS AND REQUIRES A 10 TO 14 HOUR DAY
DEPENDING ON THE EQUIPMENT BEING COMMISSIONED. SUPPLIER/MANUFACTURER NORMALLY SUPPLY
GENERATOR TESTING LOAD REQUIREMENTS.
4. VERIFY ALL SYSTEM CHECK POINTS DURING LOAD CHANGES AND RECORD PER SPECIFIED REQUIREMENTS
AND/OR EQUIPMENT MANUFACTURER.
5. PERFORM AND RECORD ENGINE MANUFACTURER'S RECOMMENDED CHECKS AND INSPECTIONS.
*CONDITION: A=ACCEPTABLE; R=NEEDS REPAIR, REPLACEMENT OR ADJUSTMENT; C=CORRECTED; NA=NOT APPLICABLE
**NOTE VALUE AND PHASING
PAGE 2 OF 2
DA FORM 7468-R, AUG 2002
APD LC v1.00

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