JLG 740AJ, Service And Maintenance Manual

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SECTION 3 - CHASSIS & TURNTABLE
3-194 3121160
Electronic Throttle Control Replacement
See Figure 3-107.
REMOVAL
1. Disconnect the negative battery cable.
2. Remove the air intake duct.
3. Release the hose clamp on the vapor fuel line and
remove the vapor hose.
4. Disconnect the TMAP electrical connector.
5. Disconnect the electronic throttle control connector.
6. Remove the manifold to throttle body adapter bolts and
remove the throttle body mixer assembly.
7. Pull the throttle body assembly from the adapter.
8. Remove electronic throttle control device.
9. Remove the O-rings gasket and discard.
INSTALLATION
LIGHTLY LUBRICATE BOTH THROTTLE CONTROL DEVICE TO ADAPTER O-RINGS.
1. Install the o-ring on throttle body. Press it down to the
bottom of the surface.
2. Install the two quad seals. Install one seal at a time to
insure the seal does not roll. The seal must sit flat on the
throttle body.
3. Attach mixer and throttle body together. The two parts
do not bolt together; they will be secured when you
mount it on the intake. Notice the orientation of the air
inlet and throttle body cover.