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10
10.19
Section 10
Reassembly
Figure 10-67. Installing Starter and ECU Bracket.
2. Torque the two hex
fl
ange screws to
16.0 N·m
(142 in. lb.)
.
3. Connect the leads to the solenoid.
Install Electronic Control Unit (ECU)
1. Install ECU to the ECU bracket using the two hex
fl
ange screws. Torque the M5 screws to
6.2 N·m
(55 in. lb.)
into new holes or
4.0 N·m (35 in. lb.)
into used holes. See Figure 10-68.
2. Connect the Black and Grey electrical connectors.
The connectors and ECU are keyed in such a way
so they cannot be installed incorrectly.
Figure 10-68. Torque ECU screws.
NOTE: The ECU pins should be coated with a thin
layer of electrical grease to prevent fre
tt
ing
and corrosion and may need to be reapplied
if the ECU is being reused.
Install Throttle Body
1. Install a new thro
tt
le body O-ring prior to
installation. Make sure all holes align and are
open.
2. Install the thro
tt
le body, thro
tt
le position sensor,
intake air temperature sensor, thro
tt
le linkage,
spring and bushing, as an assembly. See Figure
10-69.
Torque Bracket Screws
Torque Bracket Screws
Figure 10-69. Installing Throttle Body Assembly.
3. Install the air cleaner bracket (models with
heavy-duty air cleaner only) to the valve covers.
Torque the screws to
9.9 N·m (88 in. lb.)
. See
Figure 10-70.
Figure 10-70. Install Air Cleaner Bracket.
4. Push the electrical connector onto the intake
air temperature sensor making sure a good
connection is made by listening for a click. See
Figure 10-71.
5. Connect the breather hose to the thro
tt
le body
using a pliers to compress the spring clamp.
Route the hose around the thro
tt
le body and
connect to the breather cover using a spring
clamp. See Figure 10-71.
Summary of Contents for Command PRO CH749
Page 1: ...SERVICE MANUAL ECH630 ECH749 HORIZONTAL CRANKSHAFT ...
Page 2: ......
Page 4: ......
Page 76: ...6 6 Section 6 Lubrication System ...
Page 94: ...7 18 Section 7 Electrical System and Components ...
Page 112: ...8 18 Section 8 Disassembly ...
Page 126: ...9 14 Section 9 Inspection and Reconditioning ...
Page 153: ......