Avtron K711 Manual Download Page 13

Maintenance 

Avtron Load Bank  •  Part Number K711D36027 

 
 

 

5-1 

 

SECTION V 

 
 MAINTENANCE 

 
 

 
To provide long equipment life and to reduce the chance of electric shock, fires, and personal injury, 
good maintenance procedures must be used. 

 Before servicing, review the SAFETY 

CONSIDERATIONS section of this manual. 
 
The following examples of scheduled maintenance procedures are not intended to be all-inclusive, 
but must be accomplished to maintain the equipment in a good, safe condition.  All maintenance 
work must be performed only by qualified personnel. 
 
 

    ************************************************************* 

 
 

W A R N I N G

 

 

Personal injury from electrical shock or from the moving fan blade 
may result if ALL sources of power are not disconnected.  Refer to 
the SAFETY CONSIDERATIONS section of this manual. 

 

Eye protection should be worn when cleaning the unit with 
compressed air. 

 

    ************************************************************* 

 
 
 

DAILY 

 
  1. 

Remove any restrictions to the airflow through the Load Bank. 

 
  2. 

Check the screens to make sure that no objects have blocked or entered the openings.  If 
freezing conditions exist (below 32

F or 0

C) and freezing rain, sleet, or snow block the 

exhaust hood/duct/louver, the following special precautions must be taken.  Clear area 
around exhaust opening. 

 
  3. 

Verify that the airflow is in the proper direction. 

 
  4. 

Assure that there is no recirculation of the exhaust air through the Load Bank. 

 
 
 
 
 
 
 

THREE MONTHS 

Summary of Contents for K711

Page 1: ...AVTRON MODEL K711 LOAD BANK Part Number K711D36027 600 kW 480 VAC 3 Phase 60 Hz 50 50 100 100 100 100 and 100 kW CFM REQUIRED 61152 2004 Avtron Manufacturing Inc Cleveland Ohio...

Page 2: ...TENANCE 5 1 Section VI REPLACEMENT PARTS LIST 6 1 APPENDIX Avtron Load Bank Troubleshooting Guide SUPPLEMENTAL INFORMATION Avtron Bulletin 202 Installation Notes Engine Generator Duct Type Load Banks...

Page 3: ...because the function of the Load Bank is the dissipation of electrical energy there are inherent dangers to operators and equipment These dangers are outlined in this section Electrical energy is tra...

Page 4: ...some time after operation These portions of the Load Bank become quite hot and may result in a serious burn should contact be made with them 10 Do not allow objects to enter or block the air intake o...

Page 5: ...the Load Bank will apply load blocks of 100 150 150 and 200 kW sequentially After an adjustable exercise period the load steps will be removed based upon adjustable timed settings The control panel c...

Page 6: ...D AVTRON CAN PROVIDE START UP SERVICE AT A NOMINAL CHARGE AVTRON ALSO WILL PROVIDE TELEPHONE ASSISTANCE IF REQUIRED BY CALLING 216 641 8310 1 Verify the Load Bank placement meets the installation requ...

Page 7: ...hin 10 of the required voltage W A R N I N G Control power is present on terminal block in steps 4 through 6 5 Verify the proper relays energize with each individual load switch A Turn on each load st...

Page 8: ...triction of Cooling Air Any obstruction located within five 5 feet of the inlet and twelve 12 feet of the exhaust hood duct will restrict the Load Bank s airflow Airflow is also restricted when two or...

Page 9: ...ies of these load connections are shown on the Load Bank schematic diagram D36028 GROUNDING A permanent ground conductor must be connected to the Load Bank enclosure by an individual ground wire to pr...

Page 10: ...ntrol panel to the OFF position Place MODE SELECT MANUAL AUTOMATIC operation toggle switch to MANUAL position 2 Verify that all electrical connections Control Load and Grounding to the Load Bank have...

Page 11: ...TIC OPERATION 1 Place all switches on the control panel to the OFF position Place MODE SELECT MANUAL AUTOMATIC operation toggle switch to the AUTOMATIC position 2 Verify that all electrical connection...

Page 12: ...programmed exercise cycle controlled by K215 will allow the engine generator to cool down under a no load condition When the proper temperature is sensed K51 will energize K51 will initiate the adjus...

Page 13: ...sonal injury from electrical shock or from the moving fan blade may result if ALL sources of power are not disconnected Refer to the SAFETY CONSIDERATIONS section of this manual Eye protection should...

Page 14: ...he hardware where required 5 Inspect all magnetic contactors to make sure that the contacts are not severely pitted or corroded The contacts must move freely and be properly seated 6 Clean all dirt an...

Page 15: ...s information However changes are sometimes necessary and revisions to the parts list may be made at any time without notice REFERENCE DESIGNATORS Service personnel may use this parts list along with...

Page 16: ...STRUMENT 370908 2 TRANSFORMERS 7RBT801 CONTROL ENCLOSURE ASSEMBLY D36083 1 SCHEMATIC INTCON DIAGRAM D36028 REF S50 SWITCH TOGGLE CARLINGSWITCH 360591 1 2GL54 73 S1 7 20 21 SWITCH TOGGLE CARLIGSWITCH 3...

Page 17: ...3SQ XF102 103 FUSE 3A 600V LITTELFUSE 324453 2 KLDR 3 F104 106 FUSE 1A 600V LITTELFUSE 324449 3 KLDR 1 K202 204 206 RELAY TIME DELAY CROUZET 351981 4 208 88 865 215 XK51 201 210 SOCKET RELAY POTTER BR...

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