Frick XJS 95 User manual

S70 - 101 SM/NOV 94
File: SERVICEMANUAL-Section70
Replaces: Nothing(NewInformation)
Dist: 3, 3a, 3b, 3c
Service Manual
ROTARY SCREW COMPRESSORS
XJS and XJF 95/120
Property of American Airlines

XJS and XJF Rotary Screw Compressor
Service Manual
S70 - 101 SM
Page i
TABLE OF CONTENTS
GENERAL
General Maintenance ........................................................................................................................................................... 3
Preventive Maintenance Inspection .................................................................................................................................... 3
Torque Specifications .......................................................................................................................................................... 3
Special Tools and Test Equipment ...................................................................................................................................... 4
Safety Precautions................................................................................................................................................................ 4
General Safety Practices....................................................................................................................................................... 4
SECTION1–COMPRESSOR
Disassembly ......................................................................................................................................................................... 5
Assembly.............................................................................................................................................................................. 7
SECTION2–SHAFTSEAL
Removal ............................................................................................................................................................................... 7
Installation ........................................................................................................................................................................... 7
SECTION3–JACKSHAFTANDGEARS
Removal ............................................................................................................................................................................... 9
Installation .........................................................................................................................................................................12
SECTION4–SLIDEVALVEANDSLIDESTOP
Removal .............................................................................................................................................................................13
Installation .........................................................................................................................................................................15
SECTION5–ROTORSANDBEARINGS
Removal .............................................................................................................................................................................17
Installation .........................................................................................................................................................................19
SECTION6–COMPRESSORSUCTIONSTRAINER
Removal .............................................................................................................................................................................24
Cleaning and Installation ..................................................................................................................................................24
APPENDIX
Table 1-1. Compressor Clearance Record .........................................................................................................................27
FIGURES
1-1. Gear Cover, End View .................................................................................................................................................. 5
1-2. Shaftseal, Jackshaft, Gears, Rotors, and Bearings Sectional View ............................................................................... 6
1-3. Clamp Collar Installation Tool .................................................................................................................................... 9
1-4. Slide Valve and Slide Stop Sectional View ...............................................................................................................10
1-5. Slide Valve Indicator .................................................................................................................................................. 14
1-5a. Rotor Discharge Throat Length ................................................................................................................................ 19
1-5b. Discharge Casing Throat Length.............................................................................................................................. 19
1-6. Bearing Orientation ....................................................................................................................................................23
1-7. Compressor Suction Strainer ......................................................................................................................................24
1-8. Orifice Location Model 95 .........................................................................................................................................25
1-9. Orifice Location Model 120 .......................................................................................................................................26
Property of American Airlines

S70-101SM
Page 3
Frick XJS and XJF Rotary Screw Compressor
Service Manual
GENERAL
This manual provides approved procedures for teardown,
partsreplacement, and rebuildof Model XJSand XJF 95/120
compressors, manufactured by Frick and installed on RXB
and RXF Rotary Screw Compressor Units.
Toavoiderrorswhenorderingparts,alwaysprovidecomplete
Model Number and Serial Number.
MODELANDSERIALNUMBEREXPLANATION
MODELNUMBER
ROTORDIA.(MM)
2.13/1GEARRATIO–S
1.31/1GEARRATIO–M
1.62/1GEARRATIO–L
SERIALNUMBER
A-95S
B- 95M
C-95L
D-120S
E-120M
F-120L
GENERALMAINTENANCE
Propermaintenanceisimportantinordertoensurecontinued,trouble-
freeservicefromyourcompressor.Someareascriticaltooptimum
compressoroperationare:
•Keeprefrigerantandoilcleananddrytoavoidmoisturecontamination.
Afterservicinganyportionoftherefrigerationsystem,evacuateto
removemoisturebeforereturningtoservice.Watervaporcondensing
inthecompressorwhileitisrunning,ormorelikelywhileitisshutdown,
cancauserustingofcriticalcomponentsandreducetheservicelifeof
theunit.
•Keepsuctionstrainerclean.Checkperiodically,particularlyonnew
systemswhereweldingslagorpipescalecouldfinditswayintothe
compressorsuction.Excessivedirtinthesuctionstrainercouldcause
ittocollapse,dumpingdebrisintothecompressor.
• Keep oil filters clean. If filters show increasing pressure drop
(indicatingdirtorwater),stopcompressorandchangefilters.Running
acompressorforlongperiodswithhighfilterpressuredropcancause
oilstarvationandleadtoprematurebearingfailure.
•Avoidsluggingcompressorwithliquidrefrigerant.Whilescrew-type
compressorsareprobablythemosttoleranttoingestionofsome
refrigerantliquid,theyarenotliquidpumps.Besuretomaintain
adequatesuperheat,andproperlysizesuctionaccumulatorstoavoid
dumpingliquidrefrigerantintocompressorsuction.
•Keepliquidinjectionvalvesproperlyadjustedandingoodcondition
toavoidfloodingcompressorwithliquid.Liquidcancauseareduction
incompressorlife,andinextremecases,cancausecompletefailure.
XJS 95/120 S 0123 D
•Protectcompressor duringextendedperiods of shutdown.If
compressorwillbesettingforlongperiods without running,it
is advisable to evacuate to low pressure and charge with dry
nitrogen or oil, particularly on systems known to contain
amounts of water vapor.
• Preventive maintenance inspection is recommended any
time a compressor exhibits a noticeable change in vibration
level, noise level, and/or performance.
NOTE: •Somephotographsorillustrationsinthismanual
may be of prototype or special order units. Pro-
duction models may vary in some detail from
those shown.
•Somephotographsorillustrationsinthismanual
mayshowunitswithoptionalequipmentinstalled.
These items are available through your autho-
rized Frick Factor.
PREVENTIVE MAINTENANCE INSPECTION AND
SERVICE
FrickModelXJSandXJF 95/120RotaryScrewCompressors
aredesignedandmanufacturedtothehighestengineeringand
quality standards to provide optimum performance and con-
tinued service in applications of intended use, with no devia-
tions from original design. A preventive maintenance pro-
gramensuresmaximumcompressorlifeandminimizescostly
unscheduled unit downtime. Immediate shutdown and in-
spection should be made if increased sound or vibration,
increased shaft seal leakage, erratic slide valve operation,
fluctuating oil pressure, loss of compressor efficiency, in-
creased oil consumption, and/or oil contamination are ob-
served. Major inspection should be made, per the schedule,
listed in the Frick Rotary Screw Compressor IOM manual.
XJS and XJF Rotary Screw Compressor
DRIVE
END
Vi CONTROL SOLENOID
VALVE (120 VAC)
DRIVESHAFT
FRONT VIEW
MOUNTING
FOOT (4)
SUCTION VALVE
AND
STRAINER ASSY.
SLIDE VALVE
INDICATOR
SLIDE VALVE
ASSY.
ROTOR
CASING
LIFTING EYE
GEAR AND ROTOR
ASSY.
DISCHARGE
END
ECONOMIZER PORT
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S70-101SM
Page 4 Frick XJS and XJF Rotary Screw Compressor Service Manual
TORQUE DATA
Torquerequirementsapplicabletotheprocedurescontainedinthis
manual are listed below.
TORQUE SPECIFICATIONS
CAPSCREW SIZE TORQUE VALUE
ENGLISH METRIC SOCKET SIZE
M4
M5
M6
M8
M12
M16
M20
M22*
2 ft-lb
4 ft-lb
7 ft-lb
18 ft-lb
58 ft-lb
144 ft-lb
260 ft-lb
368 ft-lb
2.7Nm
5.4 Nm
9.5 Nm
24.4 Nm
78.7 Nm
195.3 Nm
352.5 Nm
499 Nm
3 mm
4 mm
5 mm
6 mm
10 mm
14 mm
17 mm
32 mm
* Hex Head
NOTE:To convert foot-poundsof torqueto metric Newton-meters,mul-
tiply foot-pounds times 1.3558 (Example: 75 ft-lbs x 1.3558 equals 101.7
Nm)
SAFETY PRECAUTIONS
DANGERS, WARNINGS, CAUTIONS, and NOTES are
strategically placed throughout this manual to further em-
phasize the importance of personal safety, qualifications of
user personnel, and proper use or maintenance of the equip-
ment. These precautions supplement and/or complement
standardindustrypracticesandthesafetyinformationdecals
affixedto applicable areas of theequipment. SafetyPrecau-
tions are defined as follows:
GENERAL SAFETY PRACTICES
It would be impossible to compile a list of all Safety
Practicesapplicabletotheoperationandmaintenanceofthe
equipment covered in this manual. This is brought about in
part by the diverse operating environments, as well as the
varied applications and customer-specified configurations.
The following Safety Practices are provided as a guide in
promoting safety during routine operation, service, inspec-
tion, and maintenance of Frick compressors. This informa-
tion, combined with standard industry safety practices, lo-
cal,state,andfederalregulations,establishtheoverallsafety
requirements for the workplace.
Alwaysshutdownunitanddiscon-
nect power before making any ad-
justments or repairs.
Operating a damaged unit is not
onlyunsafe,butcontinuedusewill
cause additional damage and/or
component failure.
DONOTattemptanyoperationor
perform any maintenance before
youreadandunderstandallSafety
Practices in this manual.
Ensure that work area is ad-
equately ventilated, and wear
proper safety equipment when
compressorisopentoatmosphere.
Indicates an imminently hazardous
situation which, if not avoided, will
result in death or serious injury.
Indicates a potentially hazardous
situationwhich, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
situation or practice which, if not
avoided,will result in damage to
equipment and/or minor injury.
Indicates an operating procedure,
practice, etc., or portion thereof
which is essential to highlight.
NOTE:
SPECIAL TOOLS AND TEST EQUIPMENT
Special tools and/or test equipment required to perform the
maintenance procedures contained in this manual are listed
below.
Frick Manufactured
Local Sourced
Owattona Tool Co.
Owattona Tool Co.
Local Purchase
Local Purchase
Equipment Manufacturer Part No.
943
1123
-
-
Compressor Size 95mm 120mm
Equipment Item No. Item No.
Complete Tool Kit
Wrench, Crowfoot
Wrench, Spanner
Gear Cover Guide Rod
8mm T-wrench
8mm Pinion Gear Puller
8mm Seal Installation and
Removal Tool
8mm Disc Bearing Puller
8mm Disc Bearing
Removal Tool
8mm Clamping Collar
8mm Discharge Bearing
Installation Tool
Tool Shaft Seal
Screw, 8mm
534C0008G01
111Q0452437
111Q0452438
534B0192H01
534C0456G01
534C0521G01
534C0523H01
534C0528G01
534C0534G01
534C0673G01
534D0434G01
534A0310H01
111Q0740796
534C0008G02
111Q0452437
111Q0452440
111Q0041972
534C0456G01
534C0520G01
534C0387H01
534C0529G01
534C0533G01
534C0673G02
534D0435G01
534A0310H02
111Q0740796
Bearing Puller
Roller Bearing Inner
Race Puller
12mm GuidePins
(31/2" lg. and 51/2" lg.)
4" Hose Clamp
REPLACE WITH PAGE 2 ON THE PC!
DANGER
WARNING
CAUTION
WARNING
WARNING
WARNING
WARNING
Property of American Airlines

S70-101SM
Page 5
Frick XJS and XJF Rotary Screw Compressor
Service Manual
GENERAL SAFETY PRACTICES (CONTD)
1. If you are not familiar with this particular Frick compres-
sor, take time to read the operator’s manual (IOM) before
attempting to run the unit for any purpose.
2.INSPECTCOMPRESSORVISUALLYbeforestart-up.
Tighten/replace any loose or missing bolts, nuts, etc. Repair
any leaks; replace any damaged hoses, lines, and/or fittings;
repair/replace any damaged electrical wiring and/or compo-
nents.
3. USE CAUTION PRIOR TO DISASSEMBLY, as com-
pressor may still be pressurized. Evacuate compressor in
accordancewithS70-101IOMandapplicableFederal,State,
and local ordinances, prior to begining any disassembly.
4. DO NOT make adjustments while the unit is operating,
unless required for service or maintenance checks.
5. DO NOT operate a damaged compressor. Always com-
plete all repairs before running unit.
6. STAY ALERT at all times. Watch what you are doing at
alltimes.Be awareofall persons intheimmediate vicinityof
operating equipment. Allow only authorized personnel in the area.
7. NEVER operate compressor if you are taking medication
that causes blurred vision, dizziness, drowsiness, or slowed
reflexes.
8. DO NOT operate compressor if excessive vibration oc-
curs.Immediately shut downunit andcompleteall necessary
repairs and required checks before attempting to restart.
9. DO NOT operate compressor exhibiting excessive pres-
sureand/ortemperaturechanges.Immediatelyshutdownunit
and complete all necessary repairs and functional checks
before attempting to restart.
10. NEVERaltercompressorfromoriginaldesign.Onlythose
alterations approved by Frick Company and/or performed by
authorized Frick service personnel are permitted.
11. KEEP COMPRESSOR CLEAN, free of debris, and
properly lubricated. A clean, properly lubricated unit will
performmoreefficientlyandoperatetrouble-freemuchlonger.
REMEMBER: Anypieceof equipment is only assafe
as those who use and maintain it.
1.0COMPRESSORTEARDOWN.
The procedures presented in this manual assume that all
maintenance wil be performed by qualified, Frick-trained
service personnel equipped with all special tools and test
equipmentnecessarytoproperlyteardownandrebuildModel
XJS and XJF 95/120 compressors.
1.0.1COMPRESSOR–DISASSEMBLY.Compressordisas-
sembly shall be accomplished in the following order:
1. Shaft Seal – Removal (Refer to paragraph 1.1.2).
2. Jackshaft and Gears – Removal (Refer to paragraph
1.2.1).
3. Slide Valve and Slide Stop – Removal (Refer to para-
graph 1.3.1).
4. Rotors and Bearings – Removal (Refer to paragraph
1.4.1).
5.Compressor SuctionStrainer – Removal (Refer to paragraph
1.5.1).
Figure 1-1. Compressor Gear Cover – End View.
1
23
2
4
1. Seal Housing
2. Elbow
3. Oil Supply Line
4. Gear Cover
XJS and XJF 95 weigh 500 lb.(227
kg);XJS and XJF 120 weigh 750
lb.(340 kg). Ensure that rigging is
properlyattachedandsecurebefore
lifting compressor.
WARNING
Property of American Airlines

S70-101SM
Page 6 Frick XJS and XJF Rotary Screw Compressor Service Manual
1235
7468
10 911
12 13
14 15
16 17
18 1920 21
22
58 23
24
25 26 27 28 29
30 31 27
32 33 34
35 36
27
37 39
38
40
41
27
42
43
44
36
35
26
26 59
25
242346
45
2048
49
50
51
52
53
7
54
557
57
56
1. Jackshaft 2. Clamp Collar 3. Seal Sear Backup Ring 4. Seal Housing 5. O-Ring 6. Shaft Seal Assembly 7. Socket Head Capscrew 8. O-Ring 9. Four-Point Contact
Ball Bearing
10. Dowel Pin Tapered 11. Roller Bearing 12. Retaining Ring
13. Bearing Spacer 14. Gear Set 15. Retaining Ring 16. Bearing Spacer 17. Roller Bearing 18. Retaining Ring 19. Roller Bearing
20. Spring Pin 21. Male Inlet Bushing 22. Rotor Casing 23. O-Ring 24. Gas Seal 25. Roller Bearing 26. Angular Contact
Ball Bearing
27. O-Ring 28. Pipe Plug 29. O-Ring 30. Balance Piston Sleeve 31. Wave Spring 32. Bearing Spacer 33. Balance Piston 34. Four-Point Contact
Ball Bearing
35. Lockwasher 36. Locknut 37. Compression Spring
38. Male Distance Sleeve 39. Outlet Bore Cover 40. Spring Pin 41. Outlet Bore Cover 42. Wave Spring 43. Discharge Casing 44. Female Distance Sleeve 45. O-Ring 46. Dowel Pin 47. Finished Rotor Pair 48. Female Inlet Bushing
49. Roller Bearing 50. Retaining Ring 51. O-Ring 52. Gear Cover 53. Solenoid Valve Gasket 54. Socket Head Capscrew 55. Solenoid Valve 56. Oil Inlet 57. Dowel Pin 58. Dowel Pin 59. Shim .002"
Figure 1-2. Shaft Seal, Jackshaft, Gears, Rotors and Bearings Sectional View.
Property of American Airlines

S70-101SM
Page 7
Frick XJS and XJF Rotary Screw Compressor
Service Manual
SEAL SEAT
8. Place seal housing (4) on workbench with inboard side
facingdown;usingSealInstallationandRemovalTool,push
(with hand pressure only) carbon-faced seal assembly out
of housing.
SEAL HOUSING
SEAL REMOVAL
AND INSTALLATION
TOOL
1.0.2 COMPRESSOR – ASSEMBLY. Compressor assem-
bly shall be accomplished in the following order:
1. Compressor Suction Strainer Cleaning and Installation
(Refer to paragraph 1.5.2).
2. Rotors and Bearings – Installation (Refer to paragraph 1.4.2).
3. Slide Valve and Stop – Installation (Refer to paragraph 1.3.2).
4. Jackshaft and Gears – Installation (Refer to paragraph 1.2.2).
1.1.1 SHAFT SEAL REPLACEMENT. This procedure
provides the information necessary for qualified personnel to
replace the jackshaft carbon-faced seal, including required
compressor disassembly.
1.1.2 SHAFTSEAL–REMOVAL.Shaftsealremovalshall
be accomplished as follows:
NOTE: Index numbers refer to Figure 1-2, unless other-
wise noted.
1. Evacuate compressor and oil separator (refer to S70-101
IOM).
2. Remove flexible drive coupling (refer to S70-101 IOM).
3.Loosenoil supplylinenutsatelbows(2,Figure1-1),which
are located on seal housing and gear cover.
4. Loosen hex-head screw in clamp collar (2); remove clamp
collar and seal seat backup ring (3) from jackshaft (1).
5. Remove capscrews (7) securing seal housing (4) to gear
cover (52). Remove seal housing and seal housing o-ring (8).
A small amount of oil will drain from housing.
NOTE: Provisions should be made to catch residual
oil that will drain when seal housing is removed.
6. Remove seal housing oil supply tubing (3, Figure 1-1).
7. Remove rotating seal seat portion (Figure 1-1) of shaft seal
assembly (6) from jackshaft (1).
CLAMP COLLAR
9. Remove carbon-faced seal assembly o-ring (5) from seal
housing.
10. Remove oil supply line elbow (2, Figure 1-1) from seal
housing.
1.1.3 SHAFT SEAL – INSTALLATION. Shaft seal instal-
lation shall be accomplished as follows:
NOTE: Index numbers refer to Figure 1-2, unless other-
wise noted. Avoid damaging carbon-faced seal
and rotating seal seat. Mishandling
will shorten seal life. Do not touch
sealing surfaces. Surfaces can be
blemished by perspiration. Ensure
that carbon is not chipped or cracked.
1. Clean jackshaft; polish minor scratches with crocus cloth,
wipe clean and coat shaft with clean refrigerant oil. Ensure
that keyway edges are free burrs.
2. Before installing rotating seal seat, coat seat surface with
clean refrigerant oil.
3. With shiny side of seal seat facing out, coat seat with
refrigerant oil and slide over jackshaft. Do not damage o-ring.
(Photo 4-24, page 6)
CAUTION
Property of American Airlines

S70-101SM
Page 8 Frick XJS and XJF Rotary Screw Compressor Service Manual
8. Install oil line elbow (2, Figure 1-1) in seal housing.
9. Install oil supply tubing (3, Figure 1-1) on elbow located
on gear cover.
10. Place new o-ring (8) on seal housing and install seal
housing over jackshaft, using care not to damage carbon-
faced seal.
11. Install end of oil supply tubing into elbow on seal
housing, ensuring that roll pin (57) in gear cover (52)
engages hole in seal housing; align elbow with oil supply
line, as necessary.
12. Secure seal housing to gear cover with capscrews (7);
tighten capscrews evenly, in crisscross pattern, to a torque
value of 58 foot-pounds (79 Nm).
13. Tighten nuts at elbows of oil supply line (2, Figure 1-1),
which are located on seal housing and gear cover.
14. Install seal seat backup ring (3) and clamp collar (2) over
jackshaft (1) and against rotating seal seat.
OIL STRAINER
7.Installnewoil strainer,p/n534A0342H01,ingearcoveroil
supply line elbow port.
4. Place seal housing on workbench, with outboard side down.
Coat new o-ring with clean refrigerant oil; install o-ring in
groove in seal housing, located in stationary carbon bore.
5. Coat carbon-faced seal with clean refrigerant oil.
6. Carefully place carbon-faced seal assembly, with carbon
end up, in seal housing. Using nonmetallic Seal Installation
Toolandbeingcarefulnottotouchcarbon,pushsealassembly
(hand pressure only) into seal housing until it is evenly
seated, with no gap between seal and housing.
NON-METALLIC
SEAL INSTALLATION
TOOL
CARBON-FACED
SEAL
SEAL SEAT
JACKSHAFT
Before installing seal housing, en-
sure that feed hole below elbow is
free of obstructions.
SEAL SEAT
BACKUP RING
CLAMP COLLAR
15. Using Clamp Collar Installation Tool, tighten clamp
collar and seal seat backup ring against rotating seal seat to
atorque value of30 foot-pounds(40.7Nm). (SeeFigure 1-3.)
16.TightencollarAllen-headbolt;remove InstallationTool.
CLAMP COLLAR
INSTALLATION
TOOL
17. Install flexible drive coupling. (Refer to S70-101 IOM.)
18. Evacuate compressor and oil separator. (Refer to S70-
101 IOM.)
CAUTION
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S70-101SM
Page 9
Frick XJS and XJF Rotary Screw Compressor
Service Manual
Figure 1-3. Using Clamp Collar Installation Tool.
1.2JACKSHAFTANDGEARS.This procedure providesthe
information necessary for qualified personnel to replace the
jackshaftbearings,includingrequiredcompressordisassembly.
1.2.1JACKSHAFTANDGEARS–REMOVAL.Jackshaft
removal shall be accomplished as follows:
NOTE: Index numbers refer to Figure 1-2, unless other-
wise noted.
1.Placesuitabledrainpanundercompressoroildrain,remove
drain plug located at the center bottom on the gear cover and
drain plug (24, Figure 1-4).
2. Remove shaft seal. (Refer to paragraph 1.1.2.)
3. Place suitable drain pan under slide stop cover (30, Figure
1-4) and remove capscrews (7) securing slide stop cover to
gearcover(2, Figure1-4);remove slide stopcover and o-ring
(32, Figure 1-4), while holding stepper piston in by hand.
8MM T-WRENCH
STEPPER PISTON
5. Remove stepper piston with glyd-rings (10 and 28, Figure
1-4) and o-rings (11 and 29, Figure 1-4). If glyd-rings and o-
rings are to be replaced, cut glyd-rings off of stepper piston
using knife and remove and discard o-rings.
4. Thread 8mm T-wrench into stepper piston and push piston
inagainstspringforce.Withfinger throughoildrainhole(24,
STEPPER PISTON
Figure1-4),pushinagainstspringforceandfeelalongbottom
ofslidestop.Whenthreadedholeinslidestopislocated,insert
8mm screw (Frick p/n 111Q0740796) through oil drain hole
and thread into slide stop.
4
2
113
12
10
9
8
7
3
5
6
11
1. O-Ring
2. Carbon Face
3. Rotating Seal Seat Assembly
with shiny side of seat facing outward
4. O-Ring
5. Gear Cover
6. Four-Point Contact Ball Bearing
7. Clamp Collar Installation Tool
8. Shaft
9. Clamp Collar
10. Seal Seat Backup Ring
11. Seal Housing
12. Carbon Faced Seal Assembly
13. Strainer
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S70-101SM
Page 10 Frick XJS and XJF Rotary Screw Compressor Service Manual
31
32 11
123
10
30 29 28 27
10 11
26 11 10 25 24
23 22 121 20 19 33 18 17
15 16
8
14
11
12
10
9
8
7
65
4
1. Socket Head Capscrew 2. Gear Cover 3. Rotor Casing 4. Pipe Plug 1/4 x 18 NPTF 5. Socket Head Capscrew 6. Spring Pin .125 x .375 7. Discharge Casing 8. Socket Head Capscrew 9. Spring Pin .187 x .625 10. Glyd-Ring 11. O-Ring 12. O-Ring 14. Cylinder Cover 15. Slyd-Ring 16. Check Valve Retainer 17. Internal Check Valve
18. O-Ring 19. Slide Valve Piston 20. Fastener for 19 21. Slide Valve 22. Unloader Spring 23. Spring Support 24. Pipe Plug 25. Slide Stop 26. Slide Stop Piston 27. Stepper Piston 28. Glyd-Ring 29. O-Ring 30. Slide Stop Cover 31. Key 32. O-Ring 33. Washer
Figure 1-4. Slide Valve and Slide Stop Sectional View.
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