Service Repair Manual
Model
235C EXCAVATOR
Shutdown SIS
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Product: EXCAVATOR
Model: 235C EXCAVATOR 3WG
Configuration: 235C EXCAVATOR 3WG00001-UP (MACHINE) POWERED BY 3306 ENGINE
Disassembly and Assembly
3306 VEHICULAR ENGINE FOR 235C & 235D EXCAVATOR
Media Number -SENR3833-01
Publication Date -01/12/1991
Date Updated -11/10/2001
Fuel Injection Pumps
SMCS - 1251-011; 1251-012; 1251-017
Remove Fuel Injection Pumps
Start By:
a. remove governor *
*See Governor, Disassemble & Assemble
1. Remove the bolts and the plate from side of the fuel injection pump housing.
2. Install tool (A) in the fuel injection pump housing. Move the rack until tool (A) can be installed
to hold the rack in the center position. The rack must be in the center position to remove the fuel
injection pumps.
3. Use tool (B) to remove bushing (1) from the fuel injection pump housing.
4. Remove the O-ring seal from the fuel injection pump housing.
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5. Install tool (C) on the bonnet and remove the fuel injection pump.
6. Remove spacer (2) from the fuel injection pump housing.
NOTE: Spacers (2) are the same thickness for each fuel injection pump so they can be mixed. The
fuel injection pump plungers and barrels are in sets and can not be mixed.
7. Do Steps 3 through 6 to remove the other fuel injection pumps.
Install Fuel Injection Pumps
1. Install spacer (2) in the fuel injection pump housing.
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2. Install tool (A) in the fuel injection pump housing. Move the rack until tool (A) can be installed
to hold the rack in the center position. The rack must be in the center position to install the fuel
injection pumps.
3. Turn camshaft until the lobe of the camshaft is down for the pump to be installed.
4. Install to