Kohler Command PRO EFI ECH749 [174/180] Reassembly
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Kohler Command PRO EFI ECH749 [174/180] Reassembly

ETB ECH EFI
1. Connect electrical connector to ignition coil.
2. Install fuel pump module baffl e to crankcase using
screws. Torque screws to 11.9 N·m (105 in. lb.).
3. Route fuel line inlet hose (if equipped) through clamp
and push high pressure fuel line connector onto fuel
pump module fi tting.
4. If Oetiker clamp was cut to remove inlet fuel line,
slide a new Oetiker clamp onto fuel line and connect
fuel line. Only use an Oetiker clamp pliers to crimp
Oetiker clamps. Oetiker clamp crimp must point up,
away from top of fuel pump module and abrasion
sleeve must be positioned over Oetiker clamp.
5. Connect electrical connector to top of fuel pump
module. Ensure grey locking tab is pulled out before
connecting. Push connector onto terminal until a
click is heard, then push in grey locking tab to lock
connector.
6. Install fuel pump module to baffl e with screws.
Torque screws to 9.2 N·m (81 in. lb.).
7. Connect vent hose to top of fuel pump module.
8. If equipped, install lift fuel pump (pulse or
mechanical) and lines as an assembly. Route pulse
line through large clamp on valve cover. Secure
clamp with pulse line with outer baffl e screw.
Connect pulse line to crankcase vacuum fi tting if
engine and position clamp to secure (if engine has a
pulse lift fuel pump).
9. Install lift fuel pump to bracket on housing using
screws. Torque to M6 screws to 7.3 N·m (68 in. lb.)
into new holes or 6.2 N·m (55 in. lb.) into used holes.
10. Connect in-line 10 micron EFI fuel fi lter and hose to
inlet barb of lift fuel pump and secure with spring
clamp. Connect fuel line to lift pump outlet and
secure with spring clamp.
ECH EFI
1. Install lift fuel pump (pulse or mechanical) and lines
as an assembly. Connect pulse line to crankcase
vacuum fi tting if engine has a pulse lift fuel pump.
2. Install lift fuel pump to bracket on housing using
screws. Torque to M6 screws to 7.3 N·m (68 in. lb.)
into new holes or 6.2 N·m (55 in. lb.) into used holes.
3. Connect in-line 10 micron EFI fuel fi lter and hose to
inlet barb of lift fuel pump and secure with spring
clamp.
4. Install fuel pump module baffl e to crankcase using
screws. Torque screws to 11.9 N·m (105 in. lb.).
5. Push high pressure fuel line connector onto fuel
pump module fi tting.
6. If Oetiker clamp was cut to remove inlet fuel line,
slide a new Oetiker clamp onto fuel line and connect
fuel line. Only use an Oetiker clamp pliers to crimp
Oetiker clamps. Oetiker clamp crimp must point up,
away from top of fuel pump module and abrasion
sleeve must be positioned over Oetiker clamp.
7. Connect electrical connector to top of fuel pump
module. Ensure grey locking tab is pulled out before
connecting. Push connector onto terminal until a
click is heard, then push in grey locking tab to lock
connector.
8. Install fuel pump module to baffl e with screws.
Torque screws to 9.2 N·m (81 in. lb.).
Reassembly
174 24 690 01 Rev. OKohlerEngines.com

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