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Electronic Unit Injector Mechanism. Refer to Testing and Adjusting. Loosen the bolt for the clamp until the bolt is finger tight

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Specifications C27 and C32 Engines for Caterpillar Built Machines

Media Number --07

Publication Date -01/12/2008

Date Updated -22/12/2008

Electronic Unit Injector Mechanism

SMCS - 1290 Part Number - 255-8001 S/N - JXP1-UP Part Number - 260-9631 S/N - DLS1-UP Part Number - 260-9631 S/N - 5301-UP Part Number - 255-8001 S/N - LWA1-UP Part Number - 260-9631 S/N - LWA1-UP Part Number - 255-8001 S/N - EXD1-UP Part Number - 260-9631 S/N - EXD1-UP Part Number - 260-9631 S/N - TPB1-UP Part Number - 255-8001 S/N - EYG1-UP Part Number - 255-8001 S/N - H4C1-UP Part Number - 255-8001 S/N - Z9K1-UP Part Number - 260-9631 S/N - JRP1-UP Part Number - 260-9631 S/N - JXP1-UP Part Number - 255-8001 S/N - 5301-UP Part Number - 260-9631 S/N - GEB1-UP Part Number - 255-8001 S/N - EED1-UP Part Number - 260-9631 S/N - EED1-UP Part Number - 260-9631 S/N - EYG1-UP Part Number - 260-9631 S/N - Z9K1-UP Part Number - 260-9631 S/N - BTW1-UP Part Number - 260-9631 S/N - BWX1-UP Part Number - 255-8001 S/N - 2211-UP Part Number - 260-9631 S/N - 2211-UP Part Number - 260-9631 S/N - RJG1-UP Part Number - 255-8001 S/N - JRP1-UP Part Number - 255-8001 S/N - DLS1-UP Part Number - 260-9631 S/N - JNW1-UP Part Number - 260-9631 S/N - H4C1-UP


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Illustration 1	g01395719
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Note: Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust" for the correct procedure for setting the lash on the electronic unit injector.

Note: Before installation of the unit injector, lubricate the top two O-ring seals (6) with a 50/50 mixture of clean engine oil and 8T-2998 Lubricant .

(1) Torque for cap nut ... 2.50 ± 0.25 N·m (22 ± 2 lb in)

(2) Torque for nut ... 100 ± 10 N·m (75 ± 7 lb ft)

(A) Adjust the unit injector height from the timing seat to the following distance. ... 78.0 ± 0.2 mm (3.07 ± 0.01 inch)

Use the following procedure to tighten the bolt (3) for clamp (5) :