Series 45 Electric Proportional Control kits for frames E, F, and J come from the factory with a
0.8mm servo control orifice installed. A 1.0mm orifice is also included in this kit in the
event it is required. If the control orifice requires replacement, please refer to the
instructions below.
CONTROL ORIFICE
REMOVAL
1. Remove plug.
2. Remove PC spool from control
housing. Note orientation of spool
for reassembly.
3. Remove orifi ce backup plug.
4. Remove servo control orifi ce.
5. Install the servo control orifi ce, and
torque to 2-3.4 N•m [18-30 in•lb].
6. Installl the orifi ce backup plug, and
torque to 2-3.4 N•m [18-30 in•lb].
7. Install the PC spool spherical end
fi rst, into the PC bore of the control
housing.
8. Install the plug. Torque the plug to
10.8 - 13.5 N•m [8 - 10 lbf•ft].
CONTROL ORIFICE
INSTALLATION
PC spool
Plug
2-3.4 N•m
[18-30 lbf•in]
3/16 inch
3 mm
2-3.4 N•m
[18-30 lbf•in]
3 mm
10.8-13.5 N•m
[8-10 lbf•ft]
PC spool
Plug
© Danfoss, 2013
11122191 • Rev AB • September 2013
1
Service Kit Instructions
Series 45 servo control orifice
Orifice replacement procedure
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