CONTENTS
2
TITLE PAGE
Rework limits..............................................................................................14
Rear drive adapters....................................................................................15
Conversion..................................................................................................16
Reassembly................................................................................................17
Controls......................................................................................................21
Pressure compensator............................................................................23
Maximum Volume Stop; Handwheel......................................................26
Buck-up cap assembly..........................................................................27
Torque limiter..........................................................................................28
Load sensing control..............................................................................32
Load sensing torque limiter..................................................................35
Rotary servo............................................................................................39
Hydraulic stroker....................................................................................43
Electrohydraulic stroker........................................................................46
PQ control................................................................................................50
Control tubing; Control cap..................................................................54
Compensator override control..............................................................55
Torque limiter override control..............................................................57
Testing........................................................................................................60
Rotary servo test....................................................................................60
Compensator test....................................................................................62
Hydraulic stroker test............................................................................64
Electrohydraulic stroker test..................................................................65
Torque limiter and torque limiter override test....................................66
Load sensing torque limiter test............................................................68
PQ control test........................................................................................70
Final pump test.......................................................................................71
Tools............................................................................................................73
Characteristics............................................................................................75
Ordering code............................................................................................78
Seal kit..................................................................................P12 S22-12830
............................................................................................P200 S22-12831
....................................................................P12 with "X" control S22-16220
..................................................................P200 with "X" control S22-16221
The shaft seal and all "O" rings necessary for total seal replacement may be
obtained by ordering Seal Kit . These seals are suitable for petroleum base
fluids. For fire resistant fluids contact DENISON HYDRAULICS, Inc. or their
authorized distributors to obtain the appropriate seal kit number.
The product information, specifications, and descriptions contained in this publication have been
compiled for the use and convenience of our customers from information furnished by the
manufacturer; and we can not, and do not, accept any responsibility for the accuracy or
correctness of any description, calculation, specification, or information contained herein. No
such description, calculation, specification, or information regarding the products being sold has
been made part of the basis of the bargain, nor has same created or amounted to an express
warranty that the products would conform thereto. We are selling the goods and merchandise
illustrated and described on this publication on an “as-is” basis, and disclaim any implied
warranty, including any warranty of merchantability or warranty of fitness for any
particular purpose whatsoever, with respect to the goods and merchandise sold. All
manufacturer warranties shall be passed on to our customers, but we shall not be responsible
for special, indirect, incidental, or consequential damages resulting from the use of any of the
products or information contained or described on this publication. Further, we reserve the right
to revise or otherwise make product improvements at any time without notification.
Port Identification........................................................................................3
Start up Procedure......................................................................................8
Trouble shooting charts..............................................................................9
Exploded view of pump..............................................................................11
Parts list......................................................................................................12
Load sensing test....................................................................................63 3
