Danfoss H1 Installation guide
Service Kit Instructions
H1 45/53 tandem pump
Charge pump kit
This document provides instructions for installing the charge pump kit.
To complete the assembly you will also need an auxiliary pad kit which includes a coupling. These items are not included in the charge pump kit.
Refer to H1 45/53 Tandem Pumps Service Manual 520L0928 for complete assembly instructions
Assembly
1.Lubricate and install seal (K150).
2.Install the housing (K300). Install screws (K350). Refer to the Wrench size and torque values table for wrench size and torque values.
3.Install alignment pins (K450). Install gasket (K151).
4.Lubricate and assemble the charge pump assembly [coupling, alignment pin (S500), gerotor (S100), cover (S200), two clips (K205)]. Position the gerotor with the counterbore towards the bottom.
5.Refer to the following illustration for proper gerotor alignment pin location.
Charge pump alignment pin location
Charge inlet port S Port ISO 11926-1 1 5/8-12
Pin location for 
counterclockwise rotation
Pin location for clockwise rotation
Charge outlet port F Port ISO 11926-1
1 1/16-12
P108 602E
6.Install the charge pump assembly into the housing in the clockwise or counterclockwise orientation.
7.Lubricate and install seal (S300).
8.Install the auxiliary pad kit. Assembly will vary depending on which auxiliary pad is used. Refer to the Wrench size and torque values table for wrench size and torque values.
© Danfoss, 2014 |
AN00000042en-US | 11109777• Rev 0200 • February 2017 |
1 |
K400 (x4)
S300
S100
S500
K151
|
|
|
K350 |
|
Wrench size and torque values |
K450 |
|
|
|
||
Item |
Wrench size |
Torque |
|
K350 |
10 mm internal hex |
76 N•m [56 lbf•ft] |
|
K400 |
10 mm internal hex |
92 N•m [68 lbf•ft] |
|
|
|
|
K300 |
Aux pad kit
S200
K205
Coupling (included in Aux pad kit)
K205
K450
K350
K150
P108 601E
© Danfoss, 2014 |
AN00000042en-US | 11109777• Rev 0200 • February 2017 |
2 |
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