D5N Track-Type Tractor Power Train Caterpillar

Pressure Charts

Usage:

D5N AGG

For additional information, refer to the Power Train Hydraulic Schematic in the Systems Operation section of this module.

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Table 1
Power Train Oil System
Machine Condition:		Brakes On	Brakes Off	Brakes Off
Actuating Control:		Parking Brake
Test Location
ER1	Engine Speed (RPM)	850 ± 30 ⁽¹⁾	850 ± 30 ⁽¹⁾	2180 ± 30
	Transmission Gear	Neutral	Neutral	Neutral
	Power Train Oil Type (Weight)	SAE 30	SAE 30	SAE 30
Q1	Power Train Oil Temperature	75 ± 5°C (167 ± 9°F)	75 ± 5°C (167 ± 9°F)	75 ± 5°C (167 ± 9°F)
B1	Left Hand Brake Pressure	0	2600 kPa (377 psi) Minimum	2700 kPa (392 psi) Minimum
C1	Left Hand Clutch Pressure	2140 ± 150 kPa (310 ± 22 psi)	2140 ± 150 kPa (310 ± 22 psi)	2240 ± 150 kPa (325 ± 22 psi)
B2	Right Hand Brake Pressure	0	2600 kPa (377 psi) Minimum	2700 kPa (392 psi) Minimum
C2	Right Hand Clutch Pressure	2140 ± 150 kPa (310 ± 22 psi)	2140 ± 150 kPa (310 ± 22 psi)	2240 ± 150 kPa (325 ± 22 psi)
P	Transmission Main Relief Valve	2925 ± 125 kPa (424 ± 18 psi)	2925 ± 125 kPa (424 ± 18 psi)	3100 ± 150 kPa (450 ± 22 psi)
PV	Priority Valve Pressure ⁽²⁾	1000 kPa (145 psi) Maximum	2925 ± 125 kPa (424 ± 18 psi)	1000 kPa (145 psi) Maximum
M	Torque Converter Inlet Pressure	N/A	N/A	700 ± 70 kPa (100 ± 10 psi)
N	Torque Converter Outlet Pressure	N/A	N/A	500 ± 70 kPa (72 ± 10 psi)
L1	Transmission Lube Pressure	12 kPa (2 psi) Minimum	12 kPa (2 psi) Minimum	260 ± 30 kPa (38 ± 4 psi)
LB1	Left Hand Clutch/Brake Lube Pressure	N/A	N/A	170 ± 30 kPa (25 ± 4 psi)
LB2	Right Hand Clutch/Brake Lube Pressure	N/A	N/A	170 ± 30 kPa (25 ± 4 psi)

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^( 1 )	LOW IDLE
^( 2 )	The priority valve regulates the flow at high pressure under any of these conditions: (a) the engine speed is less than 1300 rpm. (b) The transmission speed or direction is changed. (c) The power train oil temperature in sump (Q1) is less than 40°C (104°F). The valve remains at low pressure when the parking brake is engaged.

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Table 2
Power Train Oil System
Machine Condition:		Left Brake On	Right Brake On	Both Brakes On	Both Brakes On
Actuating Condition:		Hand Control	Hand Control	Foot Control	Foot Control
Test Location
ER1	Engine Speed (RPM)	2180 ± 30	2180 ± 30	2180 ± 30	1850 ± 70
	Transmission Gear	Neutral	Neutral	Neutral	3 Forward Stall
	Power Train Oil Type (Weight)	SAE 30	SAE 30	SAE 30	SAE 30
Q1	Power Train Oil Temperature	75 ± 5°C (167 ± 9°F)	75 ± 5°C (167 ± 9°F)	75 ± 5°C (167 ± 9°F)	75 ± 5°C (167 ± 9°F)
B1	Left Hand Brake Pressure	325 kPa (47 psi) Maximum	2700 kPa (392 psi) Minimum	0	0
C1	Left Hand Clutch Pressure	0	2240 ± 150 kPa (325 ± 22 psi)	2240 ± 150 kPa (325 ± 22 psi)	2240 ± 150 kPa (325 ± 22 psi)
B2	Right Hand Brake Pressure	2700 kPa (392 psi) Minimum	325 kPa (47 psi) Maximum	0	0
C2	Right Hand Clutch Pressure	2240 ± 150 kPa (325 ± 22 psi)	0	2240 ± 150 kPa (325 ± 22 psi)	2240 ± 150 kPa (325 ± 22 psi)
P	Transmission Main Relief Valve	3100 ± 150 kPa (450 ± 22 psi)	3100 ± 150 kPa (450 ± 22 psi)	3100 ± 150 kPa (450 ± 22 psi)	3100 ± 150 kPa (450 ± 22 psi)
PV	Priority Valve Pressure ⁽²⁾	1000 kPa (145 psi) Maximum	1000 kPa (145 psi) Maximum	1000 kPa (145 psi) Maximum	1000 kPa (145 psi) Maximum
M	Torque Converter Inlet Pressure	700 ± 70 kPa (100 ± 10 psi)	700 ± 70 kPa (100 ± 10 psi)	700 ± 70 kPa (100 ± 10 psi)	420 ± 70 kPa (60 ± 10 psi)
N	Torque Converter Outlet Pressure	500 ± 70 kPa (72 ± 10 psi)	500 ± 70 kPa (72 ± 10 psi)	500 ± 70 kPa (72 ± 10 psi)	440 ± 70 kPa (64 ± 10 psi)
L1	Transmission Lube Pressure	200 ± 30 kPa (29 ± 4.5 psi)	200 ± 30 kPa (29 ± 4.5 psi)	200 ± 30 kPa (29 ± 4.5 psi)	140 ± 30 kPa (20 ± 4.5 psi)
LB1	Left hand Clutch and Brake Lubrication	140 ± 30 kPa (20 ± 4.5 psi)	140 ± 30 kPa (20 ± 4.5 psi)	140 ± 30 kPa (20 ± 4.5 psi)	130 ± 30 kPa (19 ± 4.5 psi)
LB2	Right Hand Clutch and Brake Lubrication	140 ± 30 kPa (20 ± 4.5 psi)	140 ± 30 kPa (20 ± 4.5 psi)	140 ± 30 kPa (20 ± 4.5 psi)	130 ± 30 kPa (19 ± 4.5 psi)

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^( 2 )

The priority valve regulates the flow at high pressure under any of these conditions: (a) the engine speed is less than 1300 rpm. (b) The transmission speed or direction is changed. (c) The power train oil temperature in sump (Q1) is less than 40°C (104°F). The valve remains at low pressure when the parking brake is engaged.