Sharp WQ-700H Specifications Page 44
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GOLDCUP CONTROLS SERIES 600
CODE 60 - HYDRAULIC
STROKER
S13-48944 Feature 00 (75 - 350 PSI)
S23-00402 Feature 01 (75 - 435 PSI)
S23-04305 Feature 02 (100 - 380 PSI)
DESCRIPTION
DISASSEMBLY
See Figure 60
See Figure 60-1
ASSEMBLY
REWORK OF WEAR PARTS
See Figure 60
See Figure 60-1
This cross-center control actuates the rotary input shaft by means of a hydraulic pis-
ton. The piston is trapped between two caged springs, which are set to provide zero
displacement. Pilot pressure applied to either end of the piston causes it to move
either side of center in proportion to the pilot pressure, thus positioning the rotary
servo in proportion to pilot pressure.
1. Remove screws (10). Remove control from pump. Examine servo plate for exces-
sive scratching. Note if orifices in stem are open. If servo plate is scratched or orifices
appear to be plugged, remove plate and servo stem by removing two socket setscrews
from plate, then alternately loosening the two button head screws under the set
screws.
2. Remove screws (24) and remove cover (23). Loosen screw (4).
3. Remove servo shaft assembly and clamp (8).
4. Remove screws (26) and remove the centering adjusting group intact. Note: signal
pressure setting is determined by the spring preload. Do not disassemble or change
unless parts are damaged or setting is incorrect.
5. Remove spool (13). Do not remove stroker body from valve cover unless damaged,
or seals need replaced.
6. Examine shoes (1-5) and (1-7) for contamination in balance pads or excessive
scratching on faces. Note: the two shoes are not identical and must be installed in the
proper position on reassembly.
All parts are to be inspected and be free of material defects, dirt, scratches or any for-
eign material.
All parts are to be cleaned with a suitable cleaning solvent and all cores and passages
blown out with clean dry compressed air.
After cleaning and inspection, all parts are to be covered with a light film of oil and
should be protected from dirt and excessive handling until assembled onto the unit.
During assembly, lapped and ground surfaces should be kept lubricated and protected
from nicks or surface damage.
1. If stroker housing was removed from control cover, install O-ring (25A) in housing
and O-rings (5) and (7) on interface between parts. Slip servo shaft through the bore,
and install screws (6). Torque to 25 lbs-ft. (33.9 Nm). Check for free motion of shaft.
Remove shaft.
2. Apply pipe sealant to the 1/8” pipe plug (12) and install in the cover plate. Torque to
100 lbs-in.. (11.3 Nm)
3. Install O-ring (1-8) in groove of shear seal (1-5). Install shear seal with O-ring in
the large hole on the servo link, on the servo shaft side. Be certain that the shear seal
is sitting with the flange flush against the servo link surface.
4. Install thrust washers (1-9) over servo shaft and seat against the servo link.
5. Place two spring washers (1-6), nested with the bent sections matching each other,
into the large hole in the servo link (1-3).
6. Place washer (1-10) against the spring washers.
44
Description
Rework
Servo plate face Fine stone to remove raised burrs & dings
Shear seal Fine stone to remove raised burrs & dings. Note:
grooves to supply balance pads must be present
and adequate.
Control cover Stone or lap inside face to remove raised burrs &
dings.
Spool Break sharp edges or dings.
Shoe Stone to remove raised burrs or dings.
Note: The shear seal will fit in one position only. Otherwise one side will be held up
by the lip of the servo link. Shear seal (1-5) must be installed to face against the
cover plate. This shear seal differs from shear seal (1-7) in that the face surface is
machined with two .094” (2.4 mm) radius scallops.
- DENISON HYDRAULICS 1
- GOLDCUP CONTROLS CONTENTS 3
- See Figure 1 7
- GOLDCUP CONTROLS SERIES 100 9
- FIGURE 1 9
- See Figure 2A 10
- GOLDCUP CONTROLS SERIES 200 11
- PARTS LIST 12
- FIGURE 2A 13
- CYLINDER CONTROL 13
- S23-12329 13
- See Figure 2H 14
- S23-12358 16
- FIGURE 2H 17
- 3 POSITION CYLINDER 17
- ADJ. MAX. VOLUME STOPS 17
- See Figure 4A 18
- GOLDCUP CONTROLS SERIES 400 19
- For Figure 4A - Rotary servo 20
- FIGURE 4A 21
- ROTARY SERVO 21
- See Figure 4C 22
- ASSEMBLY 23
- S23-12343 - 4B* Fixed stops 25
- See Figure 5A 27
- GOLDCUP CONTROLS SERIES 500 28
- TEST, PUMP CONTROL 28
- TEST, MOTOR CONTROL 28
- S23-12346 32
- FIGURE 5A-1 33
- SPRING CENTERED WITH TRIMMER 33
- S23-12540 - 5A* A Mtg 34
- 23-12539 - 5A* B Mtg 34
- S23-12540 35
- See Figure 5C 36
- See Figure 5C-1 37
- See Figure 5-C 38
- DRAWING PAGE 41
- FIGURE 5C 41
- S23-12347 42
- FIGURE 5C-1 43
- BRAKE AND BYPASS VALVE 43
- See Figure 60 44
- See Figure 60-1 44
- GOLDCUP CONTROLS SERIES 600 46
- FIGURE 60 47
- HYDRAULIC STROKER 47
- For Figure 60-1 - Servo for 48
- See Figure 6A 49
- See Figure 6A-1 49
- PUMP CONTROL PRESSURE 51
- MOTOR CONTROL PRESSURE 51
- For figure 6A hydraulic 52
- See Figure 6B 54
- See Figure 6B-1 54
- FIGURE 6B 57
- WITH BRAKE AND BYPASS VALVE 57
- For Figure 6B-1 - Brake and 59
- FIGURE 6B-1 60
- See Figure 6C 61
- FIGURE 6C 64
- ADJUSTABLE STOPS 64
- See Figure 7 66
- GOLDCUP CONTROLS SERIES 700 67
- FINAL ADJUSTMENT AND TEST 67
- INSTALLATION OF ANTI-BACK 68
- LASH SPRING 68
- SK-15045 68
- FIGURE 7 70
- FEEDBACK FOR 700 SERIES HI IQ 70
- SERVO VALVE CONTROL 70
- See Figure 8A 71
- See Figure 8A-1 72
- GOLDCUP CONTROLS SERIES 800 74
- MOTOR CONTROL SPRING 74
- ADJUSTMENT 74
- See Figure 8C 78
- See Figure 8C-1 79
- See Figure 8C-2 79
- PUMP CONTROL SPRING 80
- S23-12820 82
- Feature 00 82
- FIGURE 8C 84
- See Figure 9A 87
- 9A CONTROL TEST SETUP 89
- 9A PUMP TEST 89
- 9A MOTOR TEST 89
- Figure 9A Electric stroker 91
- FIGURE 9A 93
- ELECTRIC STROKER 93
- See Figure 9C 94
- S23-12925 (Feature 00) 98
- GOLDCUP CONTROLS SERIES 900 100
- FIGURE 9C 100
- BYPASS VALVE 100
- See S23-12299 101
- One side center controls 102
- See S23-12298, S23-12300 102
- (1 SIDE OF CENTER) 105
- CW-B CCW-A 105
- S23-12298 105
- CONTROL TORQUE LIMITER 105
- (BOTH SIDES OF CENTER) 106
- S23-12299 106
- CW-A, CCW-B 107
- S23-12300 107
- For stroke indicator 109
- GOLDCUP CONTROLS SEAL KITS 110
- DEFINITION & UNIT 111
- FLUID POWER FORMULAS 111
- SALES AND SERVICE WORLDWIDE 116
- Printed in U.S.A 116
- OPI 2M 10203 116
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