MANIFOLD AS 3872957 - Caterpillar

Table 1
Required Tools (Multitach)    
Part Number    Description    Qty    
9U-7400     Multitach Tool Gp     1    
Table 2
Required Tools (Cat ET)    
Part Number    Description    Qty    
-     Laptop Computer     1    
JERD2129     Data Subscription for All Engines and Machines     1    
139-4166     Data Link Cable As     1    
7X-1701
or
171-4401     Communication Adapter As
or
Communication Adapter As     1    
7X-1425     Data Link Cable As (RS232)     1    
Position the machine on level ground.
Stop the engine.
Install 9U-7400 Multitach Tool Group on the engine or install Cat ET to the service connector behind the cab.
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).
Read the engine speed display (rpm) on the multitach or read the engine speed on the laptop computer by using Cat ET. Refer to Table 3 for the specifications for engine speed at the desired engine operation.
Table 3
Item    Specifications    
New Rebuild    Service Limit    
High Idle (1)     1880 50 rpm (2)     1680 to 1930 rpm (2)    
1960 50 rpm (3) 1760 to 2010 rpm (3)    
Low Idle     900 50 rpm     900 100 rpm    
One Touch Low Idle     1100 50 rpm     1100 100 rpm    
Maximum speed with load (4)     1720 to 1800 rpm     1670 rpm     1620 rpm    
AEC reduced speed. (5)     1300 50 rpm     1300 100 rpm    
( 1 ) AEC switch in the OFF position
( 2 ) Three seconds after the engine speed dial was placed at position "10"
( 3 ) Engine rpm within three seconds after the engine speed dial was placed at position "10"
( 4 ) Pressure is relieved from both pumps.
( 5 ) AEC switch in the ON positionNote: A New specification is the performance that can be expected for a new machine. A Rebuild specification is the performance that can be expected after the components of a system are rebuilt. Performance beyond the Service Limit is an indication of these problems: improper maintenance or adjustment, component wear and failure.