RETAINER 2770360 - Caterpillar

Table 2
Cycle Times (seconds)    
Function    Factory    CHS Inspection Step Number (1)    
Boom EXTEND     5.0 1.0     192    
Boom RETRACT     3.0 1.0        
Stick EXTEND     4.0 1.0     195    
Stick RETRACT     2.5 1.0     197    
Heel EXTEND     4.0 1.0     199    
Heel RETRACT     2.5 1.0     201    
Swing LEFT     4.4 (2)     208    
Swing RIGHT    
Overswing LEFT    
1000 mm (43.3 inch) (2)     209    
Overswing RIGHT    
Forward travel HIGH (Left) (3)     25.5 (2)     217    
Reverse travel HIGH (Left) (3)    
Forward travel LOW (Left) (3)     49.5 (2)    
Reverse travel LOW (Left) (3)    
Forward travel HIGH (Right) (3)     25.5 (2)     218    
Reverse travel HIGH (Right) (3)    
Forward travel LOW (Right) (3)     49.5 (2)    
Reverse travel LOW (Right) (3)    
( 1 ) Custom Hydraulic Service (CHS) is a preventive maintenance program for the machine hydraulic system. CHS is also a valuable part of any Customer Support Agreement. Refer to Custom Hydraulic Service, REHS1780.
( 2 ) Maximum
( 3 ) Three revolutions
Table 3
Cylinder Drift    
Function    Factory    CHS Inspection Step Number (1)    
Boom cylinder    
10.0 mm (0.39 inch)     228    
Stick cylinder    
15.0 mm (0.59 inch)    
Heel cylinder    
10.0 mm (0.39 inch)     237    
( 1 ) Custom Hydraulic Service (CHS) is a preventive maintenance program for the machine hydraulic system. CHS is also a valuable part of any Customer Support Agreement. Refer to Custom Hydraulic Service, REHS1780.
Table 4
Required Tools    
Part Number     Description     Qty    
9U-7400     Multitach Tool Group     1    
8T-0470     Thermometer group     1    
Table 5
Relief Valves    Pressure change With One Turn Of Adjustment Screw    
Main valves    
14400 kPa (2100 psi)    
Line relief valve    
11000 kPa (1600 psi)    
Swing relief valve    
6800 kPa (985 psi)    
Travel crossover relief valve    
3050 kPa (440 psi)    
Pilot relief valve    
620 kPa (90 psi)    Note: Pressure values in Table 6 are approximate values. Use a pressure gauge for adjustment.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, "Main Hydraulic Pump Air Pressure - Purge".