1977/07/11 Caterpillar

Safety Vent Caps For Caterpillar Batteries{1401}

Usage:

All Caterpillar Batteries

Reference: Because of the type of information in this article it is not written in Caterpillar Fundamental English.

Description of Change: When electrolysis takes place in a battery, a combustible gas is released into the battery air chamber. This gas then passes through the vent cap and into the atmosphere. Any fire or spark will ignite this gas and the flames that result can possibly go through the cap vent and into the battery. When this happens, the battery will explode.

All new Caterpillar batteries have safety vent caps which prevent the passage of flames. These safety vent caps are available as a replacement for all former 7S5401 Plug Caps.

Adaptable As: Direct replacement.

NOTE: Each gang vent assembly has the correct number of gangs for the specific battery.

Caterpillar Information System:

1977/07/11 New Adjustment Pin And Valve Seal Used In Fuel Ratio Control{1278}

1977/07/11 Baffle Added To Water Pump Cover To Send Coolant In Bypass Line Directly Into The Water Pump{1361}

1977/07/11 Some Earlier Vickers Hydraulic Pump Groups Are Not Available For Parts Service--Some Modification Is Needed To Install Replacement Pump Groups{5055}

1977/07/11 Tools To Install Crankshaft Seal And Wear Sleeve{1160,1161,0622}

1977/07/04 New Procedure For Calibration Of 1P3060 Pyrometer Group{0653,1050}

1977/07/04 New Seal For Crankshaft{1161}

1977/07/04 Use New Procedure To Tighten Flywheel Housing Bolts{1157,1201}

1977/07/04 Tools To Hone (Machine) Cylinder Liners Are Available To Permit The Use Of Used Cylinder Liners With New Style Pistons{0664,1214,1216}

1977/06/27 Service Tools For Low Emission Truck Engines With EGR{0650,1059,1080}

1977/06/27 New Aftercooler Housings And Covers Have Improved Design{1063}

1977/06/27 Correct Rebuild Kits Must Be Used For Repair Of Earlier And Later Water Pumps{1361}

1977/06/27 More Of The Oversize (Larger) Cast Iron Seal Rings Are Available For Clutch Housings And Clutch Pistons{3169,3170}

1977/07/11 New Component Code List For Use In The Service Information Retrieval System{0331,0374}

1977/07/11 Heat Absorbing Material Aids And Protects Surface Areas Being Welded Or Heated{0680}

1977/07/11 New Inserts To Repair Cylinder Liner Seats On D353 Engine Blocks{1201,1216,1217,0663,0653}

1977/08/08 Correct Adjustment Of Fuel Shut-Off Solenoid Shaft Can Prevent Failures{1259}

1977/08/08 New Vickers Pump Design{5055}

1977/08/08 Larger Boss Used In Cylinder Block So Bolt Hole Will Not Be Drilled Into Coolant Passage{1201,1350}

1977/08/08 Spacers Added To Alternator Group To Improve The Mounting{1405}

1977/08/08 New Air Inlet Manifold Has Longer Bolt Bosses With More Thread Depth To Keep Bolts Tight{1058}

1977/08/08 Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}

1977/08/15 Tools From Caterpillar To Test And Charge Air Conditioners And For Repair Of Frigidaire Compressors{7320,0651}

1977/08/22 New Main And Connecting Rod Bearings Are Made Of Higher Strength Material{1230}

1977/08/22 Tools Now Available To Ream And/Or Hone 0.500" (12.70 mm) Diameter Valve Guides{0663}