Eaton DuraForce HMR Series, Руководство пользователя

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18
EATON
Duraforce HMR Conversion Procedures Manual E-MOPI-TM005-E July 2012
Rear-Ported
HMR
Side-Ported
HMR
Minimum
Displacement
Adjustment
Adjustment
Stud (Typical)
Seal Nut
(Typical)
Minimum
Displacement
Adjustment
Minimum Displacement
Adjustment Procedure
Set Up and Procedure
Procedure for Adjusting the HMR Minimum
Displacement
Note
To properly adjust the minimum displacement of the HMR
motor, it is preferable that the motor free-spin while making
the adjustment - This would insure that the motor was at
minimum displacement.If this is not possible, then the HMR
must be completely unloaded when making the minimum
displacement adjustment to insure that it is at minimum
displacement.
Start the prime mover and adjust it to operating
speed.
Actuate the HMR motor under no load to insure it is
at minimum displacement.
Note
The HMR motor automatically defaults to minimum
displacement unless:
• The motor is loaded beyond the regulation begin setting in
which case the motor automatically shifts to a displacement
to accommodate the torque requirement.
• Control pressure is supplied into the displacement override
port thus forcing the HMR to maximum displacement.
To Adjust the Motor Minimum Displacement:
a. Hold the adjustment stud stationary with the 6mm
Allen Wrench.
b. Loosen the seal nut with the 19mm wrench.
c. Turn the adjustment stud IN to increase the
minimum displacement or turn it OUT to decrease
the minimum displacement.
d. Once the desired minimum displacement has been
acquired, hold the adjustment stud stationary with
the 6mm Allen wrench and tighten the seal nut
with the 19mm wrench. The proper torque for the
seal nut is 60 N-m (44 ft-lb).
Note
The following table illustrates
the recommended minimum
displacements and allowable
rotational speeds for both Max.
and Min. displacement. The
HMR motors should NOT be
operated at higher speeds if the
recommended displacements
are used, unless specifically
approved by Eaton Engineering.
If higher rotational speeds are
required for your application, you
must consult Eaton Engineering
for the required minimum
displacement setting.
1
2
3
Size 55 75 105 135 165
Max Displacement 18.3 25.3 35.0 45.2 55.2
Limit (CC)
Continuous Max Speed at Max
Speed Displacement 4100 3800 3500 3200 3100
(RPM) Continuous Max Speed at Min
Displacement 4700 4400 4100 3700 3500