Service Repair Manual
Models
16G MOTOR GRADER
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Product: MOTOR GRADER
Model: 16G MOTOR GRADER 93U
Configuration: 16G MOTOR GRADER 93U01179-02678 (MACHINE) POWERED BY 3406 ENGINE
Disassembly and Assembly
3406C DIESEL ENGINES FOR CATERPILLAR BUILT MACHINES
Media Number -SENR6409-02
Publication Date -01/07/2006
Date Updated -19/05/2015
SENR64090010
Fuel Injection Pump Housing
SMCS - 1253-015; 1253-016
Disassemble Fuel Injection Pump Housing
Start By:
a. disassemble governor
b. remove fuel injection pumps
1. Remove the six lifters from the fuel pump housing.
2. Remove rack (1) and camshaft (2) from the fuel pump housing. If necessary, use a soft hammer
to push the camshaft out the governor end.
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3. Use Tool (A) and remove the three camshaft bearings from the fuel pump housing.
4. Remove rack bearing (4) and the other rack bearing from the fuel pump housing.
5. Remove dowel (3) from the fuel pump housing.
6. Remove bolts (6), cover (5) and the gasket from the fuel pump housing.
Assemble Fuel Injection Pump Housing
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1. Install gasket (7) and cover (5) on the side of the fuel pump housing.
2. Use Tool (B) and install the D shaped rack bearing into the governor and fuel pump drive side
of the fuel pump housing 87.0 ± 0.5 mm (3.42 ± .02 in) from outside surface (X).
3. The inside flat diameter after assembly must be 11.178 ± 0.050 mm (.440 ± .002 in) and the
inside large diameter must be 12.767 ± 0.058 mm (.503 ± .002 in).
4. Install dowel (3) in the fuel pump housing 6.0 ± 0.5 (.24 ± .02 in) above the outside surface.
5. Use Tool (C) and install the rack bearing into the fuel pump housing 7.16 ± 0.13 mm (.282
± .005 in) below the surface of the pump housing.
6. The