SEAL-INTEGRAL 1010509 - Caterpillar

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Use the following procedure to prime the fuel system:If air enters the fuel system, the air must be purged from the fuel system before the engine can be started. Air can enter the fuel system when the following events occur:
The fuel tank is empty or the fuel tank has been partially drained.
The low-pressure fuel lines are disconnected.
A leak exists in the low-pressure fuel system.
The fuel filter is replaced.Electric Priming Pump
Turn the keyswitch to the ON position for 2 minutes to prime the fuel system. Turn keyswitch to OFF position, then turn on again. The engine is primed and ready to start.Mechanical Priming Pump
Primary Filter
Ensure that the air is removed from the primary filter before you prime the secondary fuel filter. Refer to illustration 1.
Illustration 1 g01316878
This filter may not be installed on the engine.
(1) Vent screwsPriming the Primary Fuel Filter
Illustration 2 g06221845
If equipped, operate the hand priming pump (2) until fuel free from air comes from the vent screw (1). Then close vent screw (1) by hand.
Illustration 3 g06221885
If the hand priming pump is not installed, operate the starting motor to crank the engine. Crank the engine to operate the transfer pump (3). Do not operate the transfer pump for more than 15 seconds. After 15 seconds, stop and wait 30 seconds before operating the starting motor.
When fuel free from air comes from the vent screw (1) close vent screw (1) by hand.Secondary Fuel Filter
Illustration 4 g06221913
Open vent screw (4).
If equipped, operate the hand priming pump (2) until fuel free from air comes from the vent screw (4). Then close vent screw (4) and tighten to 10 N m (88 lb in).
If the hand priming pump is not installed, operate the starting motor to crank the engine. Crank the engine to operate the transfer pump (3). Do not operate the transfer pump for more than 15 seconds. After 15 seconds, stop and wait 30 seconds before operating the starting motor.
When fuel free from air comes from the vent screw (4) close vent screw (4) and tighten to 10 N m (88 lb in).
Operate the hand priming pump or operate the transfer pump for 15 seconds. Then the engine fuel system should be primed and ready to start.