Improved Fuel Priming Pump Used
Usage:
All Caterpillar Engines Which Use The 4W788 Fuel Priming Pump Assembly
Description of Change: The fuel priming pump has been improved on Caterpillar engines. A new roll pin is used to secure the fuel priming pump handle to the plunger. The roll pin resists loosening better than the former solid pin.
Adaptable To: The improved 4W788 Pump Assembly is available as a direct replacement for the former pump assembly. The part number did not change.
Caterpillar Information System:
1987/05/01 Horizontally Mounted Jacket Water Heater Now Used
1987/05/01 Fuel Injection Timing Adjustment
1987/05/01 Alternator/Generator Output Test On The Engine
1987/05/01 Serviceable Parts For New Fuel Ratio Control; Pressurize Control To Set Rack
1987/05/01 The Caterpillar Fuel Flow Monitor System Available
1987/05/01 Testing The Starter On The Engine
1987/05/01 Initial Start Of Engine Using An EGB29P Governor/Actuator After Filling With Oil
1987/05/01 New Service Tools Available
1987/05/01 Service Parts Available For Air-Regulated 8T5190 Wrench Group
1987/05/01 Checking Coolant Contactor Accuracy
1987/05/01 Maintaining Coolant Water Temperature Contactor Accuracy
1987/05/01 Polarity Connections And Use Of Service Meter Films When Service Meter Kits Are Installed
1987/05/01 List of Service Publications
1987/06/01 Features And Servicing Of The Various Caterpillar 3161 Governors
1987/06/01 Fuel Injector Trim Bolt
1987/06/01 Exhaust Manifold Thermocouples Have Longer Insulated Leads
1987/06/01 Hollow Dowel Relieves Accessory Drive Oil Leakage
1987/06/01 Use Only Paint To Mark Connecting Rod Caps For Torque-Turn Method
1987/06/01 New Plastic Water Sleeve Used
1987/06/01 New Service Tools Available
1987/06/01 Twist Drills Available
1987/06/01 Remanufactured Heavy-Duty Starters And High-Amp Alternators
1987/07/01 New Power Takeoff Groups Used; New System Gives Better Face And Bore Runout On Front Power Takeoff Adapters
1987/07/01 Recommendations For Reusability Of Pistons With Crater Rim Cracks