1993/03/01 Caterpillar

Shorter Rack Shutoff Solenoids Available {1259}

Usage:

The former 2N2384 (12 Volt) and 2N2385 (24 Volt) Rack Shutoff Solenoids were canceled and replaced by 8C3666 and 8C3667 Rack Shutoff Solenoids respectively. The former solenoid bodies were 112.8 mm (4.44 in) long and the replacement solenoid bodies are 137.0 mm (5.39 in) long. The replacement solenoids are 24.2 mm (.95 in) longer and in some applications that is too long. If the former 2N2384 and 2N2385 Rack Shutoff Solenoids have more than 31.8 mm (1.25 in) length clearance with adjacent engine parts, use 8C3666 and 8C3667 Rack Shutoff Solenoids as replacements.

New 1023505 (12 Volt) and 1023506 (24 Volt) Rack Shutoff Solenoids are available. The bodies of these solenoids are 111.0 mm (4.37 in) long. If the former 2N2384 or 2N2385 Rack Shutoff Solenoids have less than 31.8 (1.25 in ) length clearance with adjacent engine parts, use 1023505 or 1023506 Rack Shutoff Solenoids as replacements.

Caterpillar Information System:

1993/03/01 Publications Updated For Hydraulic Pump And Motor Service {5050}

1993/02/22 New Voltage Regulators Provide Improved Reliability{1410,1405}

1993/02/15 Low Idle Operating Expense

1993/02/15 New Water Seals Used In Cylinder Head Groups; New Water Seal Assemblies And O-Ring Seals Used In Insert Kit {1115}

1993/02/15 Valve Seat Insert Removal Tools {0703,1103}

1993/02/15 New Oil Pump Groups Do Not Require Key On Drive Shaft {1304}

1993/02/15 Maximum Wiring Harness Extension Length Specification {1408,7451}

1993/02/15 New Tank Assemblies Used In Expansion Tank Groups; New Pressure Cap; New Coolant Recovery System Available {1354,1392}

1993/02/15 New Breather Group And Fumes Disposal Group Help Reduce Oil In Blow-By Fumes {1317}

1993/02/15 Aftercooler Core And Turbocharger Compressor Wheel Cleaning Interval {1317,1052,1054,1060}

1993/02/15 Procedure To Determine Idler Height {4159}

1993/02/08 Maintenance Tips For 6I0799 Exhaust Restrictor; Additional Spring Improves Performance Of 6I0799 Exhaust Restrictor{1119,1061,1088}

1993/03/01 Thicker Gasket Helps Prevent Leaks In Auxiliary Sea Water Pump Applications {1371}

1993/03/01 New Rear Gear Group (Cam Drive) Used {1212,1206}

1993/03/08 Understanding Circuit Breakers{1400,1420}

1993/03/08 Requirements For Installing A Different Model Year 3176 Truck Engine{1018}

1993/03/08 Moisture Entry Into Engine Electronic Controls{1901}

1993/03/08 Fan Drive Pulley Group Components{1359}

1993/03/08 New Alternator Guard Used In Belt Guard Groups{7168}

1993/03/08 New Fuel Priming Pump Kits Available{1258}

1993/03/08 Product Support Literature Available{0374}

1993/03/15 New Attachment Governor Group Available {1264}

1993/03/22 Publications Updated For Hydraulic Pump And Motor Service{0374,5050}

1993/03/22 0R3765 Remanufactured Camshaft Available{1210}