New Holland Lx985 - Hydraulic System Compatibility

SECTION 1 - GENERAL INFORMATION
HYDRAULIC SYSTEM COMPATIBILITY
There are six general questions that must be
answered before adapting attachments that
require hydraulic oil power.
1. What is the hydraulic pressure
requirement, minimum and maximum?
Are they higher than the maximum
pressure of the model?
Model Maximum Pressure
L865, Lx865, Lx885 2500 to 2600 PSI
(170-176 bar)
Lx985 . . . . . . . . . . . . 2500 to 2600
PSI
(170-176 bar)
2. What is the hydraulic oil flow
requirement? Is it more than the highest
total flow rate of the skid-steer loader
model?
Model
Standard Hydraulics
L865
17.6 GPM (66.6 I/min.)
Lx865
@2225 RPM
Lx885
@1000 PSI (68 bar)
Lx985
20.0 GPM (75. 7 I/min.)
@2325 RPM
@2000 PSI (138 bar)
NOTE: When using the High-Flow
system, 3/4" quick couplers must
be used
or high system backpressure may result.
3. Will the attachment accept oil flow in both
directions?
If "YES", nothing is required.
If "NO", install a check valve or cross into the
attachment return line to prevent reverse
oil flow
to the attachment.
Examples: Backhoes and trees spades with a
separate control valve do not accept oil flow
in
both directions.
4. Must the attachment "Free Wheel" to a
stop?
If "YES", a crossover relief connection must be
installed on the attachment side to allow the
attachment to free wheel to a stop after the
skid-steer loader hydraulics is turned off.
1-31
High Flow Hydraulics
31.0 GPM (117 I/min.)
@2250 RPM
@1000 PSI (68 bar)
34.0 GPM (129 I/min.)
@2325 RPM
@2000 PSI (138 bar)
If "NO", nothing is required.
Example: Snow blowers.
Figure 1-32
5. Will the attachment accept hydraulic
system backpressure?
If "YES", nothing is required.
If "NO", the attachment will not function properly
on a New Holland skid-steer loader. Normal
backpressure for New Holland skid-steer loaders
is between 200 to 250 PSI.
Examples: Post drivers; some breakers; and
some hand held hydraulic tools do not accept
system backpressure.
If all the skid-steer loader oil flow is not required to
operate an attachment (e.g., Shaver Post
Driver), a flow divider can be installed into the
hydraulic oil circuit on the attachment. The flow
divider sends the required oil flow to the
attachment and the remainder back to the normal
skid-steer loader hydraulic circuits.