7X4778 SEAL-O-RING Caterpillar parts
5230, 5230B, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ
Rating:
Alternative (cross code) number:
CA7X4778
7X-4778
7X4778
CA7X4778
7X-4778
7X4778
Weight: 0.27 pounds 0 kg.
Information:
CROSS SECTION DIAMETER
5.33
mm
ID
1000
mm
MATERIAL
Rubber
OD
0
mm
MINING EXCAVATOR, TRUCK,
Compatible equipment models: 7X4778:
Information:
Table 1
J1939 Code and Description CDL Code and Description Comments
N/A E563 (3)
Low Engine Coolant Flow The Electronic Control Module (ECM) detects that the coolant flow through the engine is lower than expected.
N/A 1937-2
Engine Coolant Flow Switch : Erratic, Intermittent, or Incorrect The ECM detects that the coolant flow through the engine is different than expected.
109-1
Engine Coolant Pressure : Low - most severe (3) E2112 (3)
Low Engine Coolant Pressure The engine coolant pressure is lower than expected for an extended period.
The code is logged.
109-17
Engine Coolant Pressure : Low - least severe (1) E2112 (1)
Low Engine Coolant Pressure The engine coolant pressure is lower than expected for an extended period.
The code is logged.
109-18
Engine Coolant Pressure : Low - moderate severity (2) E2112 (2)
Low Engine Coolant Pressure The engine coolant pressure is lower than expected for an extended period.
The code is logged. Probable Causes
Codes
Coolant level
Leaks
Expansion tank (if equipped)
Sensor
Flow switch
Water pump
Heat exchanger
Oil coolerRecommended Actions
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Look for active codes that are associated with the system for the event code.
Codes
Result: An associated code is active.
Repair: Troubleshoot any associated codes before continuing with this test.
Result: A code is active or logged.
Proceed to Test Step 2.
2. Check the Coolant Level
Note: If the coolant level is too low, air will get into the cooling system. Air in the cooling system will cause a reduction in coolant flow and pressure.
A. Check the cooling system for coolant leaks.
Coolant Level
Result: The coolant level is OK.
Proceed to Test Step 3.
Result: The coolant level is NOT OK.
Repair: Determine the cause of the low coolant level. Refer to Troubleshooting, "Coolant Level Is Low" for additional information.
If the problem is not resolved, proceed to Test Step 3.
3. Check the Cooling System Hose Routing
A. Check the cooling system clamps and hoses to make sure that the clamps and hoses are installed in the proper location and the clamps are tight.
B. Ensure that there are no kinks or tight bends that may cause excessive restriction.
C. Check to make sure that the hoses are routed correctly.
Leaks or Kinks
Result: The coolant clamps and hoses are installed properly.
Proceed to Test Step 4.
Result: The coolant clamps and hoses are not installed properly.
Repair: Repair or replace the damaged cooling system component.
If the problem is not resolved, proceed to Test Step 4.
4. Check the Expansion Tank
A. Check the shunt line for a restriction. A restriction of the shunt line from the expansion tank to the inlet of the jacket water pump will cause a reduction of water pump efficiency.
B. Inspect the expansion tank for a restriction that blocks the port to the shunt line.
Note: The expansion tank may be integrated into the design of the radiator top tank and may not be separate.
Shunt Line
Result: The shunt line is properly installed and there are no restrictions.
For a E2112 or 109 code, proceed to Test Step 5.
For a E563 or 1937 code, proceed to Test Step 6.
Result: The shunt line is not properly installed or there
Caterpillar parts catalog:
Parts seal Caterpillar catalog:
9X7350
SEAL-LIP TYPE
793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ
9X7388
SEAL-U-CUP
789, 789B, 793, 793B
789, 789B, 793, 793B
1374349
SEAL-O-RING
789B, 789C, 789D
789B, 789C, 789D
1U4623
SEAL-RING
785, 785C, 789, 789B, 789C, 789D
785, 785C, 789, 789B, 789C, 789D
4T4803
SEAL
785, 789, 789B, 789C, 789D
785, 789, 789B, 789C, 789D
8T6923
SEAL AS
789, 789B, 789C, 789D
789, 789B, 789C, 789D
1214172
SEAL-WIPER
793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ
793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ
0689002
SEAL-O-RING
550, 550B, 554, 560B, 564, 570, 570B, 574, 574B, 580, 580B, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F, R1600, R1600G, R1600H, W330B, W345B II, W345C MH
550, 550B, 554, 560B, 564, 570, 570B, 574, 574B, 580, 580B, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, 795F AC, 795F XQ, 797, 797B, 797F, R1600, R1600G, R1600H, W330B, W345B II, W345C MH
3170810
SEAL-O-RING
120H, 120K, 12H, 12K, 135H, 140H, 140K, 143H, 160H, 160K, 163H, 793F
120H, 120K, 12H, 12K, 135H, 140H, 140K, 143H, 160H, 160K, 163H, 793F
1367399
SEAL-U-CUP
5130, 5130B, 5230
5130, 5130B, 5230
8C9144
SEAL AS
5230
5230
1672418
SEAL-U-CUP
5130B, 5230B, S25
5130B, 5230B, S25
9X7397
SEAL AS
789B, 793B, 793C, 793D
789B, 793B, 793C, 793D
2078824
SEAL-O-RING
793C, 793D
793C, 793D
1095724
SEAL AS
776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 793F, 797, 797B, 797F
776C, 776D, 777, 777B, 777C, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 793F, 797, 797B, 797F
9P1399
SEAL
950
950
1173270
SEAL ASSEM.
950F
950F
3E8539
SEAL
950F
950F
1374350
SEAL-O-RING
793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ, 797, 797B
793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ, 797, 797B
1237270
SEAL-RING
784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ
784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 789C, 789D, 793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ
1796864
SEAL GP-DUO-CONE
784C, 785B, 785C, 789B, 789C, 793C, 797, 797B
784C, 785B, 785C, 789B, 789C, 793C, 797, 797B
6V3967
SEAL-O-RING
793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, D9R
793, 793B, 793C, 793D, 793F, 793F AC, 793F CMD, 793F OEM, 793F-XQ, D9R
1330952
SEAL-SHAFT
784C, 785B, 785C, 789B, 789C, 793B, 793C
784C, 785B, 785C, 789B, 789C, 793B, 793C
1165897
SEAL-O-RING
365B, 375, 375 L, 5080, 735, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ
365B, 375, 375 L, 5080, 735, 784B, 784C, 785B, 785C, 785D, 789B, 789C, 789D, 793, 793B, 793C, 793D, 793F, 793F CMD, 793F OEM, 793F-XQ