CYLINDER AS 1625852 - Caterpillar

Table 1
Required Tools (Multitach)    
Part Number    Description    Qty    
9U-7400     Multitach Tool Gp     1    
Required Tools (Cat ET)    
275-5120     Communication Adapter As     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 2 for the specifications for engine speed at the desired engine operation.
Table 2
Item    Specifications    
New Rebuild    Service Limit    
High Idle (1)     1960 50 rpm (2)     1760 to 2010 rpm (2)    
1880 50 rpm (3) 1680 to 1930 rpm (3)    
AEC reduced speed. (4)     1300 50 rpm     1300 100 rpm    
Low Idle     1000 50 rpm     1000 100 rpm    
One Touch Low Idle     1100 50 rpm     1100 100 rpm    
Maximum speed with load (5)     "HPC - OFF"     1720 to 1800 rpm     1670 rpm (6)     1620 rpm (6)    
"HPC - ON" 1910 to 1990 rpm     1860 rpm (6)     1810 rpm (6)    
( 1 ) AEC switch in the OFF position
( 2 ) Engine rpm within 3 seconds after the engine speed dial was placed at position "10"
( 3 ) 3 seconds after the engine speed dial was placed at position "10"
( 4 ) AEC switch in the ON position
( 5 ) Pressure is relieved from both pumps.
( 6 ) MinimumNote: 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.