158612-0001 ZEXEL 9 443 610 134 BOSCH BUSHING 9443610134 1586120001

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is found, use the solution that is identified below.Problem
Fuel injectors in certain C175 Machine Engines have been experiencing -7 and -12 fault codes which have resulted in replacement of the injectors.Solution
As Caterpillar® tries to determine the root cause for the fuel injector failures, documentation is needed. Fill out the form below and send it to the following email address:unes_john_w
Table 1
Background Information Information / Action Requested Responses / Comments
1 Truck Serial Number
2 Engine Serial Number
3 Truck Hours at Time of Failure
4 Engine Hours at Time of Failure
5 Date of Failure
6 Mine Site
7 Servicing Dealer and Dealer Code (For generating SIB Request)
8 Service/Workorder (For generating SIB Request)
9 Affected Cylinder / Cylinders of Engine
Fuel System Information
10 Injector Part Number Removed
11 Injector Serial Number Removed
12 Hours on Failed Injector
13 Replacement Injector Part Number Installed
14 Replacement Injector Serial Number Installed
15 CFM Install - Yes or No?
If Yes, provide SMH at Time of Installation
16 Low-Pressure Fuel System Configuration? (New Trans Pump per M0064904?)
If Yes, at PCR or Provide SMH at Time of Installation
17 Fuel Filter make / part number
18 Previous Maintenance on Fuel System Past Tertiary Filter
19 History of HPFP Replacement (most recent replacement hrs, symptoms)
20 SIB Issued for Injectors on Failed Cylinders
Software
21 Engine Software at Time of Failure
22 Software History on Engine - If Available
23 SC2 Installed? If No, is VIMS Data Available?
24 PSR at Time of Failure
25 ECM Replacement File at Time of Failure
Wiring
26 Any Wiring Issues on the Engine Harness?
27 Any By-Pass Wiring Installed on Engine Harness?
Service History
28 Any History of Head Bolt Failures on the Engine or Affected Cylinder?
29 Pressure Check / Evaluate Health of Injector Sleeve on Affected Cylinder
30 Any History of Fluid in the Engine (Turbocharger Failure, Coolant Leaks, ATAAC Issues)
Other
31 Submit DSN to Document Failure