CYLINDER AS 6E1495 - Caterpillar

Table 2
Required Tools    
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    
4C-6500     Digital Thermometer     1    
1U-5796     Pressure Differential Tool Gp     1    
9U-7400     Multitach Tool Gp     1    Note: Use the Caterpillar Electronic Technician (Cat ET) or a Multitach in order to monitor engine speed.
Table 3
Relief Valves    Pressure change With One Turn Of Adjustment Screw    
Signal relief valves     Implement    
10600 kPa (1535 psi)    
Travel
7050 kPa (1025 psi)    
Line relief valve    
6850 kPa (1000 psi)    
Swing relief valve    
10000 kPa (1450 psi)    
Travel crossover relief valve    
13600 kPa (1980 psi)    
Pilot relief valve    
690 kPa (100 psi)    Note: Pressure values in Table 3 are approximate values. Use a pressure gauge for adjustment.Preparation for Relief Valve Adjustment
Position the machine on level ground.
Stop the engine.
Release the pressure in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".
Illustration 2 g00853619
Pump compartment
Illustration 3 g00853523
View A-A (1) Pressure tap (front pump delivery pressure) (2) Pressure tap (rear pump delivery pressure)
Connect a 60000 kPa (8700 psi) pressure gauge to pressure tap (1) . Connect a 60000 kPa (8700 psi) pressure gauge to pressure tap (2) .
Illustration 4 g00871603
Pump compartment (3) Pressure tap (power shift pressure)
Connect a 4000 kPa (580 psi) pressure gauge to pressure tap (3) .
Illustration 5 g01117935
(55) Service connector
Connect Cat ET to service connector (55) .
Start the engine.
Illustration 6 g01117636
Monitor and keypad (50) Engine speed (51) Gain/Response (52) AEC switch (53) Gain/Response switch (54) Heavy lift switch
Place the machine controls at the following settings:
Engine speed dial "10"
AEC switch OFF
Heavy lift switch OFF (digging mode)
Gain/Response "CAT" (normal mode)Refer to Testing and Adjusting, "Engine Performance - Test" for engine rpm settings.
Place the hydraulic activation control lever in the UNLOCKED position.
Increase the hydraulic oil temperature to 55° 5°C (131° 9°F).Note: Normal operations of the engine and pumps are necessary for the pressure adjustments. If the results of the pressure adjustment are not correct, then the engine and the pump characteristic curve needs to be checked. Slow output flow from the pump is an indication of air in the hydraulic system. Make sure that no air is present in the hydraulic system. Refer to Testing and Adjusting, "Hydraulic System Pressure - Release".