This article mainly introduces the disassembly and installation of common rail device of Isuzu excavator electronic injection diesel engine.
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① Remove the connector (1 in Figure 4-49).
② Use a wrench (12mm) to remove the bolts on the wire harness clamp (2 in Figure 4-50).
③ Use a wrench (10mm) to remove the bolts on the wire harness clamp (3 in Figure 4-50).
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④ Use a wrench (14mm) to remove the eyebolts (4 and 5 in Figure 4-51) on the oil outlet pipe (6 in Figure 4-51), and remove the oil outlet pipe. ⑤ Use a wrench (10mm) to remove the lifting eye nut (8 in Figure 4-52) on the pipe clamp (7 in Figure 4-52).
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⑥Use a wrench (17mm) to remove the sleeve nuts at 4 positions (9 in Figure 4-52). Note: Replace the removed pipeline in the same way as replacing the common rail. Cover lines with caps and stopcocks to prevent water, dust or dirt from entering. Clean lines with a spray of parts cleaner to prevent scratches and remove accumulated dust from fittings.
⑦ Use a wrench (12mm) to remove the bolts (11 and 12 in Figure 4-53) and nuts (10 in Figure 4-53).
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⑨Perform the steps reverse to the disassembly steps to install the common rail. The removed high-pressure pipeline cannot be reused and must be replaced with new parts.