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Lafayette 3612 Engine BBDHD00 - Caterpillar

BBDHD00 Lafayette 3612 Engine Caterpillar parts 3612 Lafayette
Alternative (cross code) number:
Caterpillar BBDHD00 Lafayette 3612 Engine

Buy Lafayette 3612 Engine BBDHD00 Caterpillar genuine, new aftermarket tractor parts with delivery

Compatible equipment models: BBDHD00:

MARINE ENGINE  3612   Caterpillar
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Use the following procedure to measure the case drain of the travel motors.
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.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Required Tools
Illustration 1 g06217214
Tooling group (D)
Illustration 2 g03330343
( G) 418-3611 Track Block
Table 2
Tool Item Qty Part
Number Description
D D1 1 6V-7788 Flow Meter
5 to 60 L/min (2 to 15 US gpm)
D2 1 8C-6874 Reducer
D3 1 6V-9746 O-Ring Seal
D4 1 124-1901 Permanent Coupling
D5 3 ft 122-6870 Bulk Hydraulic Hose
D6 1 124-2147 Permanent Coupling
D7 1 6V-8942 O-Ring Reducer
D8 1 6V-8556 Nut
D9 1 6V-8398 O-Ring Seal
F 1 311-1362 Vacuum Cap
G 1 418-3611 Track Block Machine Preparation
Position the machine on level ground.
Illustration 3 g06196223
Sprocket (left travel)
(G) Track Block
(1) Sprocket
Place track block (G) in sprocket (1) to block forward left travel. Refer to Illustration 3.
Stop the engine.
Release the pressure in the hydraulic system. Refer to Operation and Maintenance Manual, "System Pressure Release".
Attach 311-1362 Vacuum Cap onto the hydraulic tank. Attach an air supply hose onto the assembly. Apply 276 to 414 kPa (40 to 60 psi). This procedure will pull a vacuum on the hydraulic system.
Illustration 4 g06197142
Flow Meter Tool Layout
Tooling (D)
( 2) Case drain hose
(3) Connector
(4) Travel motor
Install the following tools in accordance with the flow meter tool layout. Refer to Illustration 4.
Disconnect case drain hose (2) from connector (3).
Connect the flow meter assembly (D) between connector (3) and case drain hose (2).Note: Correct orientation of the flow meter is necessary. The oil flows from travel motor (4) to case drain hose (2).
Remove 311-1362 Vacuum Cap.Test Procedure
Start the engine.
Place the hydraulic activation control lever in the UNLOCKED position.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).
Place the machine controls at the following settings: engine speed dial "7" and AEC switch OFF
Move the left travel lever to full FORWARD position and check the flow of oil through the flow meter. Refer to Table 1.
Remove track block (G) from sprocket (1).
Move the left travel lever to reposition the travel motor.
Place track block (G) in sprocket (1) to block forward left travel.
Repeat Steps 5 through 8 to obtain three measurements of case drain oil.

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