Batteries Can Be Damaged If Too Much Vacuum Is Used During Electrolyte Fill{1401}
Usage:
At times, vacuum equipment is used to fill batteries with electrolyte. If too much vacuum is used, the walls between the cells can crack. The maximum vacuum that can be used without possible damage to the battery is 4 inches of mercury (Hg) or approximately 2 psi (14 kPa).
All dealers whose service departments have this vacuum equipment must check to make sure the vacuum is limited to the correct amount.
Caterpillar Information System:
1979/11/26 More Potting Material Now Used In 6N5906 Electric Service Meter{7480}
1979/11/12 New Air Cleaner Group Keeps Rain Out Of Cleaner{1051,1054}
1979/11/12 Puller Studs Of Same Size Can Have Different Work Capacities{0621}
1979/11/05 Wider Connecting Rods Have More Bearing Area{1214,1218}
1979/11/05 Two Plug Assemblies (Booster Cables) Are Available To Start Machines{1401,1453}
1979/11/05 Correct Installation Of Track Shoe Nuts{4170,4179}
1979/10/29 New Repair Kit Is Available For Service Of Hydraulic Jack {0642}
1979/10/29 Use The 6V2034 Micrometer Adapter To Measure Lip Thickness Of Engine Valves {0653,1105}
1979/10/29 New Top Piston Ring Has Plasma-Coated Face {1215}
1979/10/29 New--3208 Engine Maintenance Tips Wall Chart {0374,1000}
1979/10/22 Different Thrust Bearing And Thrust Rings Now Used In Turbochargers{1052,1053}
1979/10/22 New Shaft Used In Fan Drive Group{1359}
1979/11/26 New Cylinder Block Has More Material Around Liner Seat Area{1201}
1979/11/26 Former Oil Pump Group Is Now Used Again{1304}
1979/11/26 Fabricated Tester For Regulator-Exciter Control Assemblies Used On SR-4 And SRCR Generators{0652,4451,4452,4454,4467}
1979/12/10 Improved 6V2012 Micrometer Depth Gauge Set Has Increased Range To Permit Deeper Measurement{0653,5070}
1979/12/10 Improvements Made To Fuel Injection Pump And Governor Group{1253,1281}
1979/12/10 New Cylinder Heads Are More Rigid And Stronger{1100}
1979/12/10 Moldboard Repair Plates Are Adaptable To Current Machines{6151}
1979/12/10 Improved Seal Rings For Rotating Clutches, Torque Converters, And Transfer Gear Cases{3101,3155,3159}
1979/12/17 Fuel Sulfur-Your Diesel's Silent Enemy{0375,1280}
1979/12/17 New Shift Console Uses Three Bolts Instead Of Two For The Manual Switch Mounting Plate{3168,3171}
1979/12/17 Different Cap And Socket For Ball Stud On Circle Drawbar Can Be Used Without Plastic Inserts{6170,6171}
1979/12/17 Location Of Rock Shields And Rock Ejectors On 777 Trucks With 27:00 x 49 Tires{4203,7157,7258}