A New Torque Procedure For DEF Coolant Lines is Now Being Used on Certain M Series Medium Wheel Loader {108H, 108K, 108T, 1091, 7554} Caterpillar

Wheel Loader

950M (S/N: EMB1-UP; FTR1-UP)

962M (S/N: EJB1-UP; F2T1-UP)

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

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

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

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

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

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

Description Of Change: The new torque procedure has been approved for use on certain Medium Wheel loaders

Adaptable To: The new torque procedure is adaptable to the following models:

• 950M EMB1-1177

• 950M FTR1-395

• 962M EJB1-295

• 962M F2T1-231

• 966M DYC1-598

• 966M KJP1-1625

• 966M XE P6C1-448

• 972M A8P1-916

• 972M JPR1-439

• 972M XE EDW1-297

• 980M KSR1-1021

• 980M N8T1-409

• 982M F9A1-237

• 982M K1Y1-518

• 950M EMB1178-UP

• 950M FTR396-UP

• 962M EJB296-UP

• 962M F2T232-UP

• 966M DYC599-UP

• 966M KJP1626-UP

• 966M XE P6C449-UP

• 972M A8P917-UP

• 972M JPR440-UP

• 972M XE EDW298-UP

• 980M KSR1022-UP

• 980M N8T410-UP

• 982M F9A238-UP

• 982M K1Y519-UP

Torque Procedure

1. Remove the DEF box top cover plate.
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   Table 1

   Required Parts
   Item	Qty	New Part No	Part Name	Former Part No
   (6)	1	124-6256	Hose Clamp	443-3947

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   Illustration 1	g03835616
   Green (left side of graphic) image shows correct clamp positioning. Red (right side of graphic) shows incorrect clamp positioning.

2. Ensure clamps (1) through (4) are correctly located and not tightened on the tube bead. Reposition if needed. See Illustration 1.
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   Illustration 2	g03835605
   950M and 962M

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   Illustration 3	g03835611
   966M and 972M and 966M and 972M XE

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   Illustration 4	g03835613
   980M and 982M

3. Retighten clamps (1) to (10) at 4.5 ± 0.7 N·m (40± 6 lb in). See Illustration 2 for 950M and 962M sales models. See Illustration 3 for 966M and 972M and 966M and 972M XE sales models. See Illustration for 4 980M and 982M sales models.

4. If clamp (6) is leaking on the 950M and 962M or on the 980M and 982M, replace with the 124-6256 Hose Clamp.

   Note: Replace all worn or damaged clamps.

5. If using a new clamp, torque the clamps to 7.5 ± 1 N·m (66 ± 9 lb in). Wait for 10 minutes, and retighten at 4.5 ± 0.7 N·m (40± 6 lb in).

6. Clean coolant fluid residues.

7. If required, top off the shunt tank with coolant between Min and Max level indicators.

8. Run engine and verify that no leak reappears.

9. Reassemble the DEF box top cover plate.