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Cummins/Onan — “A” Accessibility Rating

A Cummins/Onan service procedure — check it applies to your exact model before use.

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Procedure

  1. Engine or generator sets mounted in equipment where 90 percent of the work can be performed while standing on the ground, shop floor, or flat work deck.
  2. Engine or generator set can be accessed without removing any doors or panels.
  3. Interfering application hardware can all be removed.
  4. Clearance is sufficient for hands, wrenches, and drain and fill operations, making visual checks and room to stand and work. “B” Accessibility Rating
  5. Engine or generator set mounted in equipment where 70 percent of the work can be performed while standing on the ground, shop floor or flat work deck.
  6. Access to the engine can be gained by removing access panels or doors.
  7. On 80 percent of the operations, interfering application hardware can be removed.
  8. On 80 percent of the operations, clearance is sufficient for hands, wrenches, service tools, drain and fill operations, making visual checks and room to stand and work. − xiv − “C” Accessibility Rating
  9. Engine or generator set mounted in equipment where 50 percent of the work can be performed while standing on the ground, shop floor or flat work deck.
  10. Access to the engine or generator set can be gained by removing the hood, structural members (bolted in) or sheet metal panels.
  11. On 60 percent of the operations, interfering application hardware can be removed.
  12. On 60 percent of the operations, clearance is sufficient for hands, wrenches, service tools, drain and fill operations, making visual checks and room to stand and work. “D” Accessibility Rating
  13. Engine or generator set mounted in equipment where 25 percent of the work can be performed while standing on the ground, shop floor or flat work deck.
  14. Access to the engine or generator set is limited due to interference from permanently mounted structural members, sheet metal or crossmembers.
  15. On 40 percent of the operations, clearance is sufficient for hands, wrenches, service tools, drain and fill operations, making visual checks and limited room to stand and work. Standard Repair Combined Times (SRCTs) SRCTs are the combination of some of the SRTs in the manual within a distinctive code. These SRCTs are based on field input of SRTs that are most frequently used in combination to describe the most common field repairs on this engine. Use of SRCTs can reduce the amount of time required to determine the labor standard for a specific complete engine or generator set repair. The use of SRCTs will also reduce the num- ber of codes required when completing a warranty claim or customer invoice. SRCTs are intended to supplement, NOT replace, SRTs. One SRCT code can be used instead of several SRT codes. It is intended that other appropriate SRTs can be used to supplement an SRCT as long as the work does not overlap. If there is overlapping work, do not use an SRCT. − xv − How To Use This Manual
  16. Determine the actual work performed: − Obtain this information from the work description on the repair order.
  17. Determine the Accessibility Code: − Determine the application from the repair order. − Look in the “Accessibility Code Listing” on page to determine the accessibility code for the application involved in the repair. If the application is not shown, assume the accessibility code is “B”. − Write down the code.
  18. Determine applicable SRCT: − Find the Contents Page for Group 99 − Standard Repair Combined Times. − Compare the titles to the work performed to determine if a SRCT will apply. − If there is an SRCT that seems to apply, find that SRCT and compare the SRT within the SRCT to the work performed. If you are not sure of the work included in the SRT, read that SRT and compare the procedure listing with the work performed. − If a SRCT applies to all or part of the work performed, find the column that contains the same accessibility code determined in Step 2 above. − Move down the column to the line containing the SRCT code and title and pick out the appropriate time. − If all the work in the SRCT is performed and additional steps were taken, use the SRCT and continue to Step 4 to cover the additional work. − If there is NOT an appropriate SRCT, move to Step 4.
  19. Determine the appropriate repair SRT: − Use the information from the repair order to identify the parts involved. − Use the contents page at the front of the manual or the alphabetical index in the back of the manual to determine the appropriate SRT group for the parts and/or work involved. − Find the contents page for that group. − Read the contents page for procedure titles that seem to correspond to the work performed. − Find the SRT within the group. − Read the SRT procedure listing to determine the work included. − xvi − − If the work performed and the work included in the SRT are the same, all or in part, determine and record the time. − Repeat the steps in this paragraph until you have determined an SRT for all the work performed.
  20. Determine the appropriate troubleshooting SRT: − Read the repair order to determine what troubleshooting work was performed. − Find the contents page for Grou ---CHUNK BREAK--- p 00. − Read the contents page for procedure to determine the work included in each step. − If the work performed and the work included in the troubleshooting SRT are the same, all or in part, determine and record the time of the SRT step. Remember that troubleshooting SRTs are cumulative.
  21. Determine the appropriate miscellaneous SRT: − Read the repair order to determine if any application hardware was removed and installed in order to access the engine or generator set. − Find the contents page for Group 17. − Read the contents page for procedure titles that seem to correspond to the work performed. − Find the SRT within the group. − Read the SRT procedure to determine the work included in the SRT. − If the work performed and the work included in the SRT are the same, all or in part, determine and record the time. − If the work required to application hardware is not given in the SRT manual, determine the time for ONLY this work from the repair order. Record the time for possible use as “99−999” or “Non-SRT Time”.
  22. Determine the appropriate administrative SRT: − Both of the administrative SRTs are shown at the beginning of Group 00. − Determine the appropriate SRT. − Record the time. − xvii −
  23. Determine the total appropriate SRT time: − Check to be sure that there is no duplication of tasks within the SRT procedures selected. If there is work duplicated by some of those selected, use other information contained in the manual to reduce the time of one of the SRTs accordingly. If the information is not available, make an estimate. − Total all the times obtained during performance of Steps 2 through 7. Standard Repair Times Review Procedure Onan Corporation makes every effort to be sure the SRTs published in this manual are cred- ible and equitable. It will be necessary to review the published times when one or more of the following changes occur: − Design changes to special service tools or equipment required to perform the repair − Changes to the repair procedure A formal SRT review procedure is available for any Cummins/Onan Authorized Repair Loca- tion that believes the SRTs shown in this manual are incorrect. To be sure prompt attention and an accurate appraisal is given to your request, the following guidelines must be met:
  24. Be sure the technician has followed all the procedures and used all the service tools referred to in the appropriate service manuals.
  25. Be sure a journeyman technician performed the repair, one who has completed the repair a sufficient number of times to become familiar with the procedure.
  26. Be sure all the SRTs, including supplemental SRTs, are appropriate for the repair are being used.
  27. Include as much detail as possible about the specific repair. NOTE: It is NOT the intent of this procedure to provide a forum for appealing or disputing the amount of time or the SRT judged appropriate on a particular warranty claim. Communication of this sort must follow the processes shown in the Onan Warranty Administration Manual.
  28. Provide photographs of the installation.
  29. Provide copies of all repair orders applicable to the SRT involved, the technicians time cards, and any other information related to the repair that will aid in the review process.
  30. Be sure to provide the correct name of the repairing location, a phone number, and point of contact. − xviii − Company Action Upon receipt of the request for an SRT review, the following action will be taken:
  31. The person signing the request will be contacted to acknowledge the receipt of the request.
  32. All the information provided will be analyzed and compared with the history files of the specific operation.
  33. All information will be analyzed to determine if an error has been made in the procedure, the operations description, or the published repair time.
  34. If it is determined the published repair time is incorrect, additional studies/analysis will be performed to establish the correct time. The requester will be notified of the results, and the results will be published in the next SRT update.
  35. If it is determined that the time and procedure is correct, recommendations and assistance will be offered as needed. 1 Group 00 − Complete Engine Contents Page TROUBLESHOOT 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . COOLANT LOSS (EXTERNAL) 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE GASES(BLOWBY) EXCESSIVE 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE CRANKS BUT WILL NOT START FAULT CODE 359 (Fail to Start − Shutdown) 4 . . . . . . . . . . . . . . . . ENGINE DIFFICULT TO START 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE NOISE EXCESSIVE 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE POWER OUTPUT LOW 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENG STARTS BUT WILL NOT KEEP RUNNING 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE UNSTABLE(HUNTS)(GENSET) 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VIBRATION EXCESSIVE 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENG WILL NOT CRANK FAULT CODE 1438 (Fail to Crank − Shutdown) 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 2677 (Fail to Stop − Shutdown) 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCESS WHITE SMOKE AT STARTUP(WARM) 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCESS WHITE SMOKE AT START−UP (COLD) 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HIGH/LOW AC OUTPUT(GENSET) 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NO OUTPUT VOLTAGE(AVR)(GENSET 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UNSTABLE VOLTAGE ENG STABLE(GENSET) 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BATTERY NOT CHARGING 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1446 (High AC Voltage − Shutd ---CHUNK BREAK--- own) 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1447 (Low AC Voltage − Shutdown) 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1449 (Over Frequency − Shutdown) 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1448 (Under Frequency − Shutdown) 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 234 (Overspeed − Shutdown) 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 2335 (Excitation Fault − Shutdown) 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 121 (Speed Signal Lost − Shutdown) 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1472 (High AC Current − Shutdown) 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 415 (Low Oil Pressure − Shutdown) 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 151 (High Coolant Temp − Shutdown) 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 146 (Pre−High Coolant Temp − Warning) 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CIRCUIT BREAKER (AC MAIN) TRIPS 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NO PROBLEM FOUND 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCESSIVE EXHAUST SMOKE (BLACK) 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCESSIVE EXHAUST SMOKE (BLUE) 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . EXCESSIVE OIL CONSUMPTION 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE OIL LEAK 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LOW OIL PRESSURE 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOFTWARE 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BELOW NOMINAL FREQUENCY 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UNBALANCED AC OUTPUT 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 145 (Coolant Sensor OOR − Warning) 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 441 (Low Battery − Warning) 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1442 (Weak Battery − Warning) 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1311 (CUST_FAULT # 1 − Warning) 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1312 (CUST_FAULT # 2 − Warning) 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Page FAULT CODE 1317 (CUST_FAULT # 3 − Warning) 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 442 (High Battery − Warning) 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1471 (High AC Current − Warning) 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 142 (Oil Pressure Sensor OOR − Warning) 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 1944 (ANNUNCIATOR ERROR − Warning) 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FAULT CODE 143 (Pre−Low Oil Pressure − Warning) 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GENSET, STANDBY 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REMOVE AND INSTALL 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REBUILD 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ENGINE 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REPLACE 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST STATOR WINDINGS 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TEST ROTOR WINDINGS 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADMINISTRATIVE TIME 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPEN/CLOSE REPAIR ORDER (SHOP) 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ADMINISTRATIVE TIME 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OPEN/CLOSE REPAIR ORDER (ROAD) 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135/141 Standard Repair Times Procedure Number and Description Removed From Chassis R A B C D Special S In-Chassis Service Accessibility Codes 3 00−010 TROUBLESHOOT − COOLANT LOSS (EXTERNAL) Step 1 Includes: − − 0.3 − − − −Evaluate faul

Source: manual:900-0910 Cummins C33D5 - C35D6 Repair Times.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.