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BOOM AR-1 PIECE LONG 3904348 - Caterpillar

3904348 BOOM AR-1 PIECE LONG Caterpillar parts 308E CR BOOM
Alternative (cross code) number:
Caterpillar 3904348 BOOM AR-1 PIECE LONG

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Compatible equipment models: 3904348:

MINI HYD EXCAVATOR  308E CR   Caterpillar
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Diesel engine exhaust contains products of combustion which may cause personal injury.Always start and operate the engine in a well ventilated area, and, if in an enclosed area, vent the exhaust to the outside.
Personal injury can result from rotating and moving parts. Stay clear of all rotating and moving parts.Never attempt adjustments while the machine is moving or the engine is running unless otherwise specified.The machine must be parked on a level surface and the engine stopped.Attach a "Do Not Operate" or similar warning tag to the start switch and controls before servicing, repairing, or making adjustments to the machine.
Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations and mandates.
Note: The illustrations in the following procedure show the Water Delivery System installed on a 777F Off-Highway Truck.If the oil becomes contaminated, premature component failure could result. Contaminated oil can also contribute to overheating.Use the following procedure to determine the contamination of the oil in the hydraulic system.
Illustration 1 g02762397
Obtain a hydraulic oil sample from S O S sampling valve (1). Note: Refer to Operation and Maintenance Manual, SEBU8654, "Hydraulic System Oil Sample - Obtain" for the correct procedure.
Check the hydraulic filter element for foreign materials. Circuit Fill and Prime Procedure
Table 1
Needed Parts
Item Qty Part Number Description
1 1 7X-0873 Tee
2 1 3J-1907 O-Ring Seal
3 1 6V-3965 Fitting (Test)
4 1 8F-0024 Hose As
5 1 6V-4144 Quick Connect Coupler
6 1 231-6284 Filter Cart Gp
7 1 6V-0852 Dust Cap
Illustration 2 g03859259
Illustration 3 g03859262
View (A-A)
Check the oil filter group to ensure tee (1) and test fitting (3) are installed. If installed, proceed to Step 4. If not installed, proceed to Step 2.
Remove the hose assembly from filter inlet (A). Install tee (1) to the inlet as shown.
Install one O-Ring seal (2) onto test fitting (3). Install the test fitting into tee (1). Install the hose assembly removed in Step 2.
Use quick disconnect coupler (5), and hose assembly (4) to connect filter cart group (6) to test fitting (3).
Fill the Water Delivery System (WDS) with Cat® HYDO Advanced 10 hydraulic oil.
Allow pressure in the hydraulic circuit to build. Hold the pressure until the WDS hydraulic tank is full. The approximate capacity of the tank is 33 L (8.7 US gal).
Remove quick connect coupler (5) from test fitting (3). Install one dust cap (7) onto test fitting (3).

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308E CR Mini Hydraulic Excavator HAM00001-UP (MACHINE) POWERED BY C3.3B Engine

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