Coolant Drain and Vacuum Fill Procedure For Certain C9.3 Through C18 Tier 4 Engines {0708, 1350, 1354, 1377} Caterpillar

Articulated Truck

725C (S/N: TFB1-UP)

725C2 (S/N: 2T31-UP)

730C (S/N: TFF1-UP)

730C EJECTOR (S/N: TFH1-UP)

735B (S/N: T4P1-UP; E4R1-UP)

735C (S/N: TFJ1-UP)

740B (S/N: T4R1-UP; E4S1-UP)

740B EJECTOR (S/N: T4S1-UP)

740C EJECTOR (S/N: TFN1-UP)

745C (S/N: JE81-UP; TFK1-UP)

Cold Planer

PM620 (S/N: JB91-UP)

PM622 (S/N: JFC1-UP)

Electric Power Generation

C13GENSET (S/N: X3M1-UP)

C15 PET GEN SET (S/N: LWR1-UP)

XQ375 (S/N: X3F1-UP)

Engine

C13 (S/N: N3F1-UP; KWJ1-UP)

C15 (S/N: MG21-UP; JJF1-UP; N5F1-UP; LDN1-UP)

C18 (S/N: BE21-UP; N8F1-UP; BDN1-UP; ZPS1-UP)

Excavator

336E (S/N: JEA1-UP; RZA1-UP; KED1-UP; YCE1-UP; TEG1-UP; BMH1-UP; FJH1-UP; GTJ1-UP; JRJ1-UP; SSL1-UP; YEP1-UP; CMR1-UP; HDW1-UP; DPX1-UP; BZY1-UP; GNY1-UP; TMZ1-UP)

336F (S/N: B391-UP; TZA1-UP; RKB1-UP; RBC1-UP; YFD1-UP; KGH1-UP; YBH1-UP; ZBJ1-UP; LCL1-UP; NBL1-UP; SSN1-UP; LTP1-UP; NBS1-UP; KFT1-UP; DSW1-UP; MTW1-UP; DFY1-UP; WTZ1-UP)

340F (S/N: YBF1-UP; EAR1-UP)

349E (S/N: FJB1-UP; ETC1-UP; DGE1-UP; SPG1-UP; TFG1-UP; RGH1-UP; FEJ1-UP; KCN1-UP; MZW1-UP; KFX1-UP; MPZ1-UP; WHZ1-UP)

349F (S/N: BZ21-UP; KEA1-UP; HLB1-UP; HPD1-UP; TEW1-UP)

352F (S/N: WNA1-UP; YEG1-UP; A9J1-UP; KBP1-UP)

374F (S/N: DNM1-UP)

390F (S/N: TYE1-UP; MGF1-UP; HSM1-UP)

Forest Machine

568 (S/N: BRB1-UP; YJX1-UP)

Generator Set

C15 GEN SET (S/N: T4A1-UP; X5M1-UP)

C18 GEN SET (S/N: X5F1-UP; T4X1-UP)

Industrial Engine

C13 INDUSTRIAL (S/N: RRA1-UP)

C9.3 (S/N: CS91-UP; C9N1-UP; D9N1-UP)

Landfill Compactor

826K (S/N: 2321-UP; 2L31-UP; 2T61-UP)

836K (S/N: T6X1-UP; L6Z1-UP; TWZ1-UP)

Mobile Hydraulic Power Unit

336E MHPU (S/N: PCE1-UP; RBS1-UP; DSZ1-UP; T3Z1-UP)

336FMHPU (S/N: B341-UP; B351-UP)

349E MHPU (S/N: JAE1-UP; S3P1-UP; MTS1-UP)

374F MHPU (S/N: DP41-UP)

Motor Grader

12M Series 2 (S/N: F9B1-UP; F9M1-UP; R9P1-UP; R9S1-UP)

12M Series 3 (S/N: N9B1-UP; N9F1-UP; N9P1-UP; N9R1-UP)

140M Series 2 (S/N: M9D1-UP; R9G1-UP; M9J1-UP; R9M1-UP)

140M Series 3 (S/N: N9D1-UP; N9G1-UP; N9J1-UP; N9M1-UP)

160M Series 2 (S/N: M9E1-UP; M9K1-UP; R9L1-UP; R9T1-UP)

160M Series 3 (S/N: N9E1-UP; N9K1-UP; N9L1-UP; N9T1-UP)

16M Series 3 (S/N: N9Y1-UP)

18M Series 3 (S/N: N9A1-UP)

Off-Highway Truck/Tractor

770G (S/N: RMA1-UP; KDH1-UP)

772G (S/N: RME1-UP; KEX1-UP)

Petroleum Power Train Package

CX31-P600-C18I (S/N: PDC1-UP)

CX35-P800-C18I (S/N: PCF1-UP)

Pipelayer

PL72 (S/N: P721-UP)

PL83 (S/N: CB21-UP)

PL87 (S/N: TEC1-UP)

Reclaimer Mixer

RM500B (S/N: MB91-UP)

Road Reclaimer/Soil Stabilizer

RM-500 (S/N: ASW1-UP)

Site Prep Tractor

2864C (S/N: SP41-UP)

586C (S/N: SP51-UP)

Soil Compactor

825K (S/N: 2331-UP; 2L91-UP; 2T91-UP)

Track-Type Tractor

D6T (S/N: CR31-UP; MH71-UP; CG81-UP; SGA1-UP; KSB1-UP; ZJB1-UP; JZC1-UP; DTD1-UP; RAD1-UP; STE1-UP; EJJ1-UP; SLJ1-UP; GMK1-UP; RRK1-UP; JML1-UP; MEL1-UP; TSM1-UP; WLM1-UP; WRN1-UP; KMR1-UP; PLR1-UP; WES1-UP; SGT1-UP; JRW1-UP; RCW1-UP; NDY1-UP; TMY1-UP; HTZ1-UP)

D7E (S/N: HKA1-UP; TJA1-UP; SSH1-UP; TAN1-UP)

D8T (S/N: AW41-UP; FMC1-UP; MLN1-UP; FCT1-UP)

D9T (S/N: REX1-UP)

Wheel Dozer

824K (S/N: 2T21-UP; 2L41-UP; 2341-UP)

834K (S/N: TW41-UP; L4Y1-UP; TWY1-UP)

Wheel Loader

966K (S/N: PBG1-UP; TFS1-UP)

966K Series XE (S/N: NGX1-UP)

966M (S/N: EJA1-UP; DYC1-UP; LMM1-UP; KJP1-UP)

966M Series XE (S/N: P6C1-UP)

972K (S/N: PEM1-UP; Z4W1-UP)

972M (S/N: LSJ1-UP; GGN1-UP; A8P1-UP; JPR1-UP)

972M Series XE (S/N: EDW1-UP)

980K (S/N: W7K1-UP; NEP1-UP; GTZ1-UP)

980M (S/N: KRS1-UP; N8T1-UP)

982M (S/N: F9A1-UP; K1Y1-UP)

986H (S/N: L8S1-UP)

986K (S/N: MH81-UP; NL81-UP)

988K (S/N: T8E1-UP; L8X1-UP; TWX1-UP)

Wheel Tractor-Scraper

621H (S/N: DBK1-UP; HKK1-UP)

621K (S/N: WTA1-UP; WTE1-UP)

623H (S/N: DBF1-UP)

623K (S/N: WTB1-UP)

627H (S/N: DBW1-UP)

627K (S/N: WTC1-UP)

637K (S/N: WTS1-UP; WTT1-UP; WTX1-UP)

Introduction

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Safety Section

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.

A person must be alert to potential hazards. This person must also have the necessary training, skills, and tools to perform these functions properly.

Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance of a potential hazard.

Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive. Avoid using a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar. If used, ensure the safety of the operating personnel and others.

Ensure that the product will not be damaged or the product will be made unsafe by the operation, lubrication, maintenance, or the repair procedures.

Operation of the machine and the maintenance of the machine must not occur unless the instructions and warnings in the machines Operation and Maintenance Manual have been read and the instructions and the warnings are understood.

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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, disconnect the battery cable from the negative (−) battery terminal. Completely tape all metal surfaces of the disconnected battery cable end in order to prevent contact with other metal surfaces which could activate the engine electrical system. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on.

Caterpillar Channel 1 Videos

For supplemental information on this procedure, refer to the following video.

Note: A CWS login is required to access Caterpillar Channel 1. Scan the QR code below with a QR enabled device or copy the link that follows.

Illustration 1	g06293119

Required Parts

Note: Different adapters and fittings may need to be used to make the tooling groups work for a specific machine.

Coolant Drain Procedure

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Personal injury can result from hot coolant, steam and alkali. At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. Cooling System Conditioner contains alkali. Avoid contact with skin and eyes.

Note: Before draining the cooling system, make sure coolant is not leaking from the surge tank/radiator. Check the surge tank/radiator coolant level and add coolant to check for leaks as necessary.

1. Stop the engine and allow the engine to cool. Loosen the cooling system filler cap slowly in order to relieve any pressure. Remove the cooling system filler cap.

2. Open the cooling system drain valve (if equipped). If the cooling system is not equipped with a drain valve, remove one of the drain plugs.

   Note: If equipped, be sure to drain the heater and any related supply and return lines.

   Allow the coolant to drain.

3. When cooling system is drained, close the cooling system drain valve (if equipped), or reinstall the cooling system drain plugs. Make any necessary repairs to the cooling system now.

   Note: Inspect the water pump and the water temperature regulator after the cooling system has been drained. This is a good opportunity to replace the water pump, the water temperature regulator, and the hoses, if necessary.

Coolant Flush Procedure

Note: For the following procedure to be effective, there must be some active flow through the cooling system components.

1. Flush the cooling system with clean water in order to remove any debris.

2. Close the drain valve (if equipped). Clean the drain plugs. Install the drain plugs. Refer to the Specifications Manual, SENR3130, "Torque Specifications" for more information on the proper torques.
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   NOTICE
   Fill the cooling system no faster than 19 L (5 US gal) per minute to avoid air locks.

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   NOTICE
   Use of commercially available cooling system cleaners may cause damage to cooling system components. Use only cooling system cleaners that are approved for Caterpillar engines.

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   NOTICE

3. Fill the cooling system with a mixture of clean water and Cat Quick Flush cooling system cleaner. Refer to the directions for the cleaner. For additional information on cooling system cleaners, refer to the One Safe Source catalog. Install the cooling system filler cap.

4. Start and run the engine at low idle for a minimum of 30 minutes. The coolant temperature should be at least 82 °C (180 °F).
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   NOTICE
   Improper or incomplete rinsing of the cooling system can result in damage to copper and other metal components. To avoid damage to the cooling system, make sure to completely flush the cooling system with clear water. Continue to flush the system until all signs of the cleaning agent are gone.

5. Stop the engine and allow the engine to cool. Loosen the cooling system filler cap slowly in order to relieve any pressure. Remove the cooling system filler cap. Open the drain valve (if equipped) or remove the cooling system drain plugs. Allow the water to drain. Flush the cooling system with clean water. If equipped, be sure to flush the heater and any related supply and return lines. Close the drain valve (if equipped). Clean the drain plugs. Install the drain plugs. Refer to the Specifications Manual, SENR3130, "Torque Specifications" for more information on the proper torques.

Coolant Vacuum Fill Procedure

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Personal injury can result from hot coolant, steam and alkali. At operating temperature, engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot coolant or steam. Any contact can cause severe burns. Remove filler cap slowly to relieve pressure only when engine is stopped and radiator cap is cool enough to touch with your bare hand. Cooling System Conditioner contains alkali. Avoid contact with skin and eyes.

1. Make sure surge tank/radiator drain is closed.
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   Illustration 2	g06354772
   (1) Vacuum Module (2) Surge tank/radiator cap adapter

2. Connect vacuum module (1) to surge tank/radiator cap adapter (2).
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   Illustration 3	g06354836
   (3) Vacuum module vent valve (4) Vacuum module air valve

3. Turn vacuum module vent valve (3) to CLOSED. Make sure vacuum module air valve (4) is turned to CLOSED.
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   Illustration 4	g06354855
   (1) Vacuum Module (5) Air hose

4. Connect air hose (5) to vacuum module (1).
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   Illustration 5	g06354859
   (6) Vacuum module exhaust hose

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   Illustration 6	g06354882

5. Make sure vacuum module exhaust hose (6) is positioned in a safe manner and vacuum module coolant supply hose (7) is placed safely in coolant supply container.
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   Illustration 7	g06354864
   (4) Vacuum module air valve

6. Open vacuum module air valve (4).

7. Allow the vacuum module to draw 68 kPa (20.08 inch mercury) to 85 kPa (25.10 inch mercury) on the cooling system.
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   Illustration 8	g06355745

8. When vacuum module gauge reaches green zone, open coolant supply valve (8).
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   Illustration 9	g06355751
   (4) Vacuum module air valve (9) Surge tank (10) Coolant cold minimum level

9. Observe the coolant level in surge tank/radiator (9). When the coolant level reaches the coolant "Cold Minimum" level (10), close vacuum module air valve (4). Allow the existing vacuum to finish filling the cooling system. Open the vacuum module vent valve when the gauge reaches 10 kPa (3 inch mercury) in the red zone.
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   Illustration 10	g06355752
   (1) Vacuum Module (2) Surge tank cap adapter (5) Air hose (10) Coolant cold minimum level (9) Surge tank

10. Disconnect shop air hose (5) from vacuum module (1).

11. Remove vacuum module (1) and coolant surge tank adaptor (2) from surge tank (9).

12. Disconnect the cooling management hose from the cooling system quick disconnect.

13. Ensure that the coolant is at the coolant cold minimum level (10) and replace the surge tank/radiator cap.