Fan Drive Control - Danfoss 45 K2 Series Repair Instructions

Repair Instructions
Series 45 Frame K2 Axial Piston Pumps
Reassembly

Fan Drive Control

© Danfoss | April 2017
Reassembly
1. Install the servo control orifice (G020). Install the gain orifice (H030).
2. Install plugs (C129) and (C107).
3. Install spool (C122) spherical end first, into the spool bore. Install spring (C125).
4. Install the pressure limiter adjuster (C128).
5. Install the spring guide (C123) and spring (C124). Ensure the spring guide is properly seated on the
spools spherical head.
6. Install the solenoid cartridge with its O-ring.
7. Install the coil and O-rings. Ensure that the O-rings are correctly installed. Ensure the coil connector is
in right orientation.
8. Install the coil plastic nut (QC125 ).
Use the proper wrench, do not damage the plastic nut.
9. Using petroleum jelly to retain them, install the four interface O-rings (C200) in the recesses on the
control housing.
10. Install the control assembly onto the endcap using four screws (C300). Torque screws in a criss-cross
pattern and re-torque the first screw to ensure proper torque retention.
Fan Drive Control
C300
C107
C122
C125
C128B
C128A
C128C
C128
Item Description
G020 Servo control orifice
H030 Gain orifice
C129 Plug 5/16"
C107 Plug 7/16"
C128C Nut 9/16"
C120 Solenoid cartridge
Right coil orientation
QC135
C124
C123
C120
*QC120
C129
H030
* Included in overhaul seal kit
G020
*C200
Wrench size
3 mm internal hex
2,5 mm internal hex
1/8" internal hex
3/16" internal hex
17 mm exter hex
17 mm exter hex
QC125
QC130
Left coil orientation
P109024
Torque
2.7 N•m [2 lbf•ft]
2.7 N•m [2 lbf•ft]
6.2 N•m [4.67 lbf•ft]
13.7 N•m [9.9 lbf•ft]
23.7 N•m [17.5 lbf•ft]
25.75 N•m [19 lbf•ft]
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