Service Manual
Contents
1. Screw Mixture control lever 15 20 in Ibs Screw Throttle lever clamp 20 28 in bs Screw Pump inlet strainer housing 14 18 in Ibs Screw Float bracket 8 11 1105 Screw idle drill plug 12 16 in Ibs Thread lock Screw Pump lever pin 8 11 Screw Throttle body to bowl 35 45 8 12 in Ibs Valve assy Pump inlet Valve assy Pump discharge 50 70 in Ibs Nozzle 45 60 in Ibs Nut Throttle lever 20 60 in Ibs Fuel inlet and strainer assy 10 12 8156 Plug Bo drain 25 30 in Ibs Idle tube 3 5 in Ibs Float valve seat 10 12 ft lbs TABLE II p D gt PRECISION AIRMOTIVE CORPORATION 14800 40th Avenue N E Marysville Wa 98271 Tel 360 651 8282 Fax 360 651 80802. 55 FIGURE 12 To install the float place the throttle body with the mounting flange down and install the proper throttle body to bowi gasket 8 Place the float valve retractor clip 6 on the float valve 7 as illustrated in Figure 12 Place the float valve and retractor clip on the float 5 as illustrated in Figure 13 Make sure the float valve is centered on the adjustment tab on the float The float valve retractor clip should not hold the float valve tight against the float lever but have approximately 005 clearance when viewed as in Figure 13 Place the float valve and clip assembly into the float bracket 64 with the valve 7 in the float valve seat 27 Reference Figure 15 FIGURE 14 13 56 57 58 Assure that the retractor lip is engaged in hole FIGURE 13 Insert the float lever shaft 4 through the float bracket and float lever hinge and safety in place with cotter pin 3 Bend the ends of the pin all the way back CAUTION Insure that the float shaft is free to rotate and that the float and valve movement is not restricted between the fully open and fully closed position of the float valve This is approximately 1 2 inch of float travel measured at outer end of float The float setting is established as shown in Figure 14 with 7 32 clearance between the float and gasket measured near the outer end of each float If adjustment is required bend the float lever adjustment ta
3. hold the pin securely in position lower hole is known as the No 1 hole and Press down against the top of the pump produces the shortest stroke The middle plunger rod assembly 11 to make certain hole or No 2 hole produces a medium that the stem on the pump plunger and stem supply of accelerating fuel Refer to FIG C assembly 16 will slide freely in the end of the Page 2 stem 46 Some models have a pump plunger 48 Ifthe pump leather expanding spring 17 assembly which incorporates a collapsing removed install it carefully under the pump feature to prolong the pump stroke leather 47 Assemble this type in accordance with this 49 Install fuel inlet fitting strainer assembly 46 special section and Figure 10 and gasket 47 Torque fitting 46 to 10 12 a Hold a spring seat 12 against each end of foot pounds the spring 13 and slide the pump plunger 50 Install float valve seat 27 and gasket 28 and stem assembly 16 through the spring using tool No M 104 See Figure 11 Torque b Slide the pump plunger rod 11 over the 1o 10 12 foot pounds end of the pump plunger stem 11 so that the 51 CAUTION Exercise care during the following hole at the lower end will be in alignment with operations to prevent damage to the float the slot in the stem Apply finger pressure SOCKET EXTENSION HANDLE IW ae 12 MANDLE 6 13 lu FIGURE 10 FIGURE 11 52 53 54
4. 0 15 inch pounds Safety the throttle valve screws in place with clinching tool M 109 See Figure 8 Carefully installed the shaft will rotate freely from fully closed to wide open Note Certain carburetors do not use a wide open valve and you may notice that the valve is limited up to 159 from the fully open position This is normal and an important part of the full throttle requirements DO NOT CHANGE Install throttle adjusting screw 35 and spring 36 Install retainer 39 spring 28 and idle needle 37 Approximate setting 1 1 2 to 2 tums from seat NOTE Some models do not use retainer 39 Refer to appropriate parts list section for proper configuration Place horseshoe washer 25 in its groove on mixture control valve 24 Place washer 26 over valve head and insert into casting from the bottom Slide packing 23 washer 22 and spring 21 over valve head Place tip of the lock wire loop 20 into its hole in valve head Align lever 19 with wire loop and push down to compress spring 21 Assure that the loop the lock wire is toward the valve Install clamp screw 17 through safety washer 18 lever 19 and lock wire 20 and bend safety tab washer to secure Torque screw to 20 28 inch pounds 4 42 43 44 Install float bracket 64 with screws 63 torque to 8 11 inch pounds NOTE Screw 63 should be replaced if nylon long loc is missing or ineffective Slide throttle opening sp
5. DLE NEEDLE SEAT IDLE EMULSION CHANNEL IDLE ADJUSTING NEEDLE IDLE AIR VENT THROTTLE BODY amp BOWL OVER FLOAT VALVE amp SEAT LEVER RETAINING NUT FUEL INLET SCREEN ASS Y MIXTURE CONTROL LEVER THROTTLE STOP ECONOMIZER CHANNEL ECONOMIZER HOLE ATMOSPHERIC BOWL VENT IDLE AIR VENT BOWL COVER GASKET FUEL BOWL MIXTURE METERING VALVE ASSY MIXTURE METERING VALVE BOWL DRAIN PLUG FLOAT ASS Y MIXTURE METERING SLEEVE ACCELERATING PUMP LEVER ACCELERATING PUMP LINK FIG C FIG D ACCELERATING PUMP CHAMBER ACCELERATING PUMP PLUNGER PUMP INLET SCREEN PUMP INLET CHECK VALVE ARBURETOR PUMP DISCHARGE CHECK VALVE ASS Y THROTTLE FLY IDLE NEEDLE DELIVERY FIRST FLY HOLE DELIVERY SECOND FLY HOLE DELIVERY THIRD FLY HOLE DELIVERY THROTTLE FLY CLOSED VENTURI MIXING CHAMBER 4 THR BORE NOZZLE AIR VENT NOZZLE OUTLET NOZZLE BORE NOZZLE NOZZLE WELL NOZZLE BLEED HOLES ACCELERATING PUMP ISCHARGE TUBE IDLE SUPPLY OPENING IDLE FUEL ORIFICE IDLE TUBE POWER JET FUEL CHANNEL MODEL MA 4SPA CONTENTS SPECIAL TOOLS DISASSEMBLY PROCEDURE THROTTLE BODY DISASSEMBLY FUEL BOWL DISASSEMBLY CLEANING AND INSPECTION EXPLODED VIEW OF CARBURETOR THROTTLE BODY ASSEMBLY PROCEDURE FUEL BOWL ASSEMBLY ACCELERATOR DISCHARGE TUBE ASSEMBLY THROTTLE BODY AND BOWL ASSEMBLY INSTALLATION OF WARNING LABEL TEST PROCEDURE F
6. FSM OH1 March 30 1993 AIRCRAFT CARBURETOR SERVICE MANUAL MODELS MA3A MA3PA MA3SPA MA4SPA PRELISIUON AIRMOTIVE CORPORATION 14800 40th Avenue N E Marysville WARNING WARRANTY AND LIABILITY INFORMATION The use of parts NOT AUTHORIZED by Precision in Precision Airmotive aviation carburetors constitutes an alteration or modification of the carburetor and voids all warranties Precision Airmotive will accept no warranty or responsibility liability for carburetors containing UNAUTHORIZED parts Any operator and or overhaul facility responsible for installation of UNAUTHORIZED parts may have the sole and full liability for property damage or injury including death arising from any malfunction of the carburetor in which such parts are installed This manual is not applicable and should not be used for the installation of parts NOT AUTHORIZED by Precision Airmotive Reference Precision Airmotive Service Bulletin MSA 5 and Service Information Letter 10 21 92 Copyright 1993 Precision Airmotive Corporation Everett Washington 98204 All rights reserved Printed in the United States of America JBIUON AIRH TIVE CORPORATION DAPRE UN AIRMOTIVE v RATION CARBURETOR PUMP DISCHARGE ICHECK VALVE ARBURETOR PUMP DISCHARGE CHECK VALVE SPRING HOLE 2 MEDIUM HOLE 1 MINIMUM HOLE 3 MAX NORMAL THROTTLE SHAFT THROTTLE STOP SCREW I
7. LOAT VALVE AND SEAT TEST PRESERVATIVE TREATMENT TORQUE SPECIFICATIONS NOTE Models MA 3A MA 3PA MA 3SPA and MA 4SPA are very similar and this overhaul section will apply to all Model MA 3A does not have accelerating pump circuit Example Part No A10 3103 1 as used on the Lycoming 0 235 C1 SPECIAL TOOLS sa 7 1 2 GEx lt 1 2 REF PART M ME NO NO NOMENCLATURE 1 M 7 Nozzle wrench 1 2 inch Snap On No SF 161 M 12 Socket extension 3 M 13 Socket extension handle 4 M 83 Venturi assembling tool 5 M 86 Throttle shaft bushing driver 6 M 104 Float valve seat remover T M 108 Throttle shaft bushing reamer 8 M 109 Throttle valve bolt clincher 9 M 120 Venturi extractor 10 M 122 Throttle shaft bushing remover 11 M 123 Pump stem packing stake punch 12 M 123 Pump stem packing stake pilot 13 M 133 Torque tool for pump discharge tube 14 M 134 Locating tool for pump discharge tube 15 M 510 Float clearance gage Not shown Ref pg 14 EN FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN ADVERSE CARBURETOR PERFORMANCE AND ENGINE OPERATION STANDARD MA 3 amp 4 5 Remove pump link cotter pins 9 pump link DISASSEMBLY PROCEDURE 10 and pump plunger assembly 11 Note Refer to exploded view pages 8 amp 9 for hole location of pump link in pump lever 13 Complete Parts Reference Numbers 6 Remove accelerato
8. ON THROTTLE SHAFT BUSHING REMOVER SOCKET EXTENSI HANOLE FIGURE 5 FIGURE 4 CLEANING AND INSPECTION Cleaning Process Inspection 24 Use a recommended carburetor cleaner and 26 following parts should always be replaced the cleaner manufacturer s procedure to soak during carburetor overhaul rinse and blow out to assure complete All gaskets cleaning Only metal parts are to b placed in Seals and packing carburetor cleaner Do not expose non metal Throttle shaft bushings parts to carburetor cleaner Retainers 25 Carburetors have by design requirements very Float valve and seat assembly small passages channels and orifices Accelerator pump These are quite difficult to inspect using the Float shaft naked eye Using equipment such as an Otoscope or other magnifying device will NOTE Fuel inlet strainer assembly should be enable you to see these difficult places replaced if the strainer screen is broken at any place or cannot be satisfactorily cleaned IMPORTANT Do not clean passages in castings or calibrated parts nozzle idle tube 27 Normal aircraft quality inspection techniques etc with wire or small drills Compressed air can determine reusability of carburetor carburetor cleaner and a small soft bristle components Abnormal wear cracks warping brush work quite well or damage are of course just cause for rejection Wear beyond the limits shown in WEAR LIMI
9. TS FOR MA 3 AND MA4SPA CARBURETORS TABLE I is also just cause for rejection FERESSEE PERUSSELE WORN DM WORN DESCRIPTION CLEARANCE Tsay xtra 27 am 24 Meurs control valve eg as Accalrator pump hae in 3s aus 205 E Bowi Mixture contro sies 25 ta Peat hat bracat d E m 4 oat shaft m Br ER NOTE Late model aircraft are equipped Trot shat busing holes iris with soft engine mounts This has created a Titia shat bering OD am more severe vibration environment causing Theale shaft bushing LD ms different wear characteristics in different 4 Trott shat aus aircraft Careful inspection is required TP Accelerator pamp lavar halas H2 es 10 Aecsierstor pump ink am 3 Fioat adjustment ta warst Mor Eod Recelratr pump oder 0 Thot stop pad on wear spot gt TABLE PRECISION AIRMOTIVE CORPORATION MODEL MA 3 amp 4 ASSEMBLY PROCEDURE THROTTLE BODY 28 29 Lightly coat the bushing with Loctite RC 680 per Loctite s recommended instructions Install throttle shaft bushings using tool M 86 bushing driver Place bushing 44 on driver and tap into place repeat on opposite side See Figure 6 Cure in location from two to four hours Heat not to exceed 1100F may be used to speed curing FIGURE 6 NOTE Repeated rebushing of ol
10. ation 16 Venturi 43 seldom needs service however if necessary press out the venturi from the FIGURE 1 throttle valve side using tool M 120 as shown in Figure 2 MAIN VENTURI EXTRACTOR 17 Remove throttle shaft bushings 44 using tool 19 Remove fuel inlet strainer assembly 46 and M 122 or any standard bushing removal tool gasket 47 Remove float bracket screws See Figures 3 and 4 63 and bracket 64 18 Remove economizer jet 45 if used vent FUEL BOWL DISASSEMBLY screen 42 if used and idle drill plug 66 if 20 Remove idle tube 48 and drain plug 49 used Note Heating may ease removal of 21 Remove nozzle 50 safety washer 51 and idle drill plug If lead ball is used in place of nozzle gasket 52 See Figure 5 idle drill plug DO NOT REMOVE Note Occasionally the nozzle gasket will stay in the casting when nozzle is removed Make sure it is removed 22 Remove pump discharge check valve assembly 53 safety washer 54 and gasket 65 NOTE Do not disassemble the pump discharge valve 53 23 Remove pump inlet retainer screws 56 safety washers 57 retainer flange 58 strainer housing 59 gasket 60 screen 61 and inlet check valve assembly 62 Pump discharge tube Figure 5 seldom needs service or removal If itis damaged or loose pull it carefully out of its casting counter bore and discard THROTTLE SHAFT BUSHING REMOVER FIGURE 3 NOZZLE WRENCH SOCKET EXTENSI
11. b located over the float valve to achieve the 7 32 setting A small screwdriver bent 30 degrees approximately 1 4 inch from its tip is a useful tool for setting the float 30766 FLOAT 1 FIGURE 15 59 CAUTION Both float pontoons must be at the 66 Install pump inlet check valve assembly 62 same height above the gasket inlet screen 61 gasket 60 housing 59 60 CAUTION DO NOT APPLY PRESSURE and flange 58 chamfered side toward THE VALVE AND SEAT DURING casting and secure with screws 56 ADJUSTMENT BENDING safety washers 57 Bend tabs to secure 61 Use tool No M 510 as a clearance gauge to 2 Torque check valve assembly 62 to 8 12 check float before assembly in accordance inch pounds and screws 56 to 14 18 inch with Figure 16 The float may be repositioned pounds laterally by loosening the float bracket screws 67 _ Install drain plug 49 with a small amount of 63 moving the bracket slightly and thread lube Torque drain plug 49 to 25 30 retightening screws Set throttle body aside in inch pounds CAUTION Make sure no thread clean area while completing bow assembly lube can be put in ahead of the plug 62 CAUTION To prevent possible damage to the 68 Place power jet gasket 52 on shoulder of float do not blow on or into the carburetor power jet in the base of nozzle and insert assembly with compressed air Failure to nozzle through gasket safety washer 51 and follow t
12. der models with the old style steel bushings may have enlarged the bore with resultant loss of press fit Make sure in this case that the loose bushings are in location Line ream the bushings with tool No M 108 See Figure 7 10 30 31 Install pump stem packing 16 and retainer 15 using tools M 123 and M 123A Place tool M 123A packing pilot in place on the bottom side of throttle body slip packing 16 in the cavity on top side Place retainer 15 over packing and stake in place with tool 123 Remove pilot Install venturi 43 using tool M 83 Place the venturi position so that the notch in the side of the venturi will be in alignment with the nozzle and the legs engaged in the grooves in the throttle bore THROTTLE SHAFT BUSHING REAMER TAP WRENCH FIGURE 7 32 33 3 35 36 37 38 39 40 Install the economizer jet 45 if used Exercise caution so as not to damage or burr is jet since this can cause a change in flow Install vent screen 42 if used Install idle drill plug 66 to 12 16 inch pounds with Loctite 222 or equivalent mild threadlock Install throttle shaft 34 throttle valve 33 and throttle valve screws 32 Run screws lightly into place rotate the shaft to the closed position and tap the valve lightly with the screw driver blade to seat the valve in throttle bore Hold the throttle valve closed and tighten the screws Torque screw 32 to 1
13. he surface to dry completely Remove the peel off backing from the waming label 65 and attach the label to the carburetor body TEST PROCEDURE GENERAL 79 After the carburetors have been overhauled and the checks performed as specified throughout the overhaul procedures the carburetors should be equal to new units Final adjustments should be made at the time the carburetor is installed on the engine FLOAT VALVE AND SEAT TEST See Figure 20 80 Connect the inlet fitting of the carburetor to a fuel pressure supply of 0 4 psi B Remove the bow drain plug and connect fitting rubber hose and glass tube to the carburetor drain connection The glass tubing should be positioned vertically beside the carburetor 16 Allow the fuel pressure at 0 4 psi to remain for a period of at least 15 minutes and then raise the fuel pressure to 6 0 psi There will 7 be a slight rise in fuel level as the pressure is increased Allow the 6 0 psi pressure to remain for at least five minutes after the fuel level has stabilized D If the fuel rises to the level of the parting surface of the castings or runs out of the nozzle the and throttle body must be separated and the float valve and seat cleaned or replaced CAUTION Under no circumstances change the float level from the established setting to correct flooding or to change fuel level E With fuel supplied to the carburetor as shown in Figure 20 operate the th
14. hese instructions may result in adverse install nozzle firmly into the bow casting See carburetor performance and engine operation Figure 17 NOTE It is best to install nozzle with bowi inverted to insure that the power jet FUEL BOWL ASSEMBLY gasket does not fall into well and block power 63 Install idle tube 48 in casting exercising jet not to damage the tube Torque idle tube 48 69 Bend ALL tabs in washer 51 to secure to 3 5 inch pounds 70 pump discharge tube seldom needs 64 Install pump discharge check valve assembly service However if it needs to be replaced i 53 gasket 55 and safety washer 54 is installed with Loctite mounting compound 4 Torque valve assembly 53 to 50 70 inch and cured in place in accordance with the pounds Bend tabs to safety following instructions 65 NOTE Do not disassemble the pump discharge valve 53 It is factory preset If it has been disassembled it must be replaced YOU ARE LOOKING TO THE BOTTOM OF THE 305 ec o GAUGE NOZZLE WRENCH IN PLACE ON TE THAGFTLE BODY SOCKET EXTENSION tn 5 socket extension BOTH FLOAT SEC Tics MAAE FIGURE 16 PROCEDURE TO ASSEMBLE ACCELERATOR 74 DISCHARGE TUBE IN MA 3 AND MA 4 BOWLS 71 Clean and roughen longitudinally not radially with 320 emery cloth approximately 1 2 inch length of the end of the accelerator discharge tube which is inserted into the bow discharge port Thoroughly clean both surfaces wi
15. ocating tube part of tool M 134 thru the hole as indicated and down over the pump discharge tube and allow to cure in place See Figure 18 If Primer T is used parts must be joined within four minutes after RC 880 is applied If Primer N is used parts must be joined within ten minutes after RC 680 is applied Allow to cure at room temperature With Primer T fixturing occurs within five minutes with full cure in six hours With Primer N fixturing occurs in 15 30 minutes and full cure in 12 hours After full cure the Loctite joint must be able to withstand 48 inch ounces of torque applied at the rotational axis of the discharge tube entering the discharge port without movement of the discharge tube See Figure 19 USING M 133 TOOL ON 3 8 SOCKET APPLY 48 INCH OUNGES TORQUE FIGURE 19 THROTTLE BODY AND BOWL ASSEMBLY 77 Carefully assemble the castings together by inserting the pump plunger into its cavity in the bowl extreme care should be exercised to keep from damaging the pump leather carefully guide the mixture metering valve 24 into its seat in bowl Assure that the accelerator pump discharge tube is located inside the center ring of the venturi Install bow cover screws 2 and safety washers 1 and torque in place 35 45 inch pounds Bend up a minimum of two tabs on all safety washers INSTALLATION OF WARNING LABEL 78 Clean the side of the carburetor body using acetone or equivalent degreasing solvent Allow t
16. r pump lever screw 12 1 Separate the throttle body and by lever 13 and throttle opening spring 14 bending tab washers 1 and removing bow dj mare pimp 15 are pug cover screws 2 Note Old models may have safety wire and cross hole drilled screws 2 Tap casting lightly with a soft faced hammer a to loosen and pull castings apart being careful not to damage the float packing 16 with a pointed tool or small screw driver Remove mixture control clamp screw 17 and safety washer 18 DISASSE 9 Remove mixture control lever 19 lock wire loop 20 spring 21 thrust washer 22 and 3 Remove float shaft cotter pin 3 shaft 4 Be float 5 retraction clip 6 and float valve 7 40 4 Discard bowl gasket 8 Remove mixture control valve 24 horseshoe washer 25 and gasket 26 11 Remove float valve seat 27 and gasket 28 using tool M 104 or a large screw driver See Figure 1 12 note of throttle lever position before removal Remove throttle lever cotter pin 29 nut 30 and lever 31 13 Remove throttle valve screws 32 valve 33 and throttle shaft 24 14 Remove throttle adjusting screw 35 and spring 36 15 Remove idle adjusting needle 37 spring REMOVER 38 and retainer 38 NOTE some models do not use retainer 39 Refer to appropriate SOCKET EXTENSION HANOLE parts list section for proper configur
17. ring 14 if used over the end of shaft 34 and insert the end through the hole in casting web Install accelerating pump lever 13 and secure in place with screw 12 Torque screw 12 to 8 11 inch pounds Insert the throttle opening spring end through the cross hole drilled screw 12 to safety and bend the end of the spring over to secure If model does not incorporate spring use safety wire to safety screw 12 Place throttle lever 31 at proper angle location on throttle shaft and secure with retaining nut 30 Torque nut 30 to 20 60 inch pounds Install cotter pin and bend NOTE Carburetor without the throttle lever locknut retaining feature on the end of the throttle shaft must have the throttle lever safety wired as shown in Figure 9 Insert the pump 11 carefully through the packing and install pump link 10 and cotter pins 9 Note The accelerating pump lever has three holes into which the upper end of the pump connecting rod can be installed THROTTLE VALVE BOLT CLINCHER FIGURE 8 FIGURE 9 45 The outer hole known as the No 3 hole is against the top spring seat 12 to compress approximately midway in height between the the spring 13 far enough to permit insertion upper and lower holes The No 3 hole of the spring seat locating pin 10 After the provides the longest stroke for delivery of pin 10 is in place release pressure on the maximum amount of accelerating fuel The spring 13 to
18. rottle lever for several strokes to fill the accelerating pump and passages Then close the throttle open it fully again and hold it for a few seconds If the accelerating pump is operating correctly a solid stream of fuel will be discharged from the accelerating pump discharge tube or jet and will gradually die away after the spring on the pump plunger reaches its limit WARNING DO NOT STAND DIRECTLY OVER THE CARBURETOR FLANGE AS FUEL WILL BE DIRECTED INTO THE FACE OF THE OPERATOR FIGURE 20 F Ifthe fuel discharge from the discharge tube is weak or if air is dispelled it is an indication that the pump plunger pump discharge or inlet check valve are not functioning properly Disassemble the carburetor and mak necessary repairs 6 Remove the sight tube fixture and allow the fuel to drain out Operate the pump to clear the fuel out of the pump cylinder and passages Reinstall and safety drain plug PRESERVATIVE TREATMENT 81 If the carburetor is to be placed in storage after overhaul the bow drain plug should be removed and the carburetor flushed internally with soluble corrosion preventive oil Military Specification MIL C 4339 After draining the Surplus oil from the carburetor enough will cling to the parts to provide intemal protection during storage Replace the bow drain plug TORQUE SETTINGS FOR MA 3 AND MA 4SPA CARBURETORS Screw Throttle valve 10 15inibs
19. th Loctite safety solvent Clean surfaces insure consistent bonding results After applying safety solvent to accelerator discharge port in casting swab with CLEAN pipe cleaner to remove residual contamination After applying safety solvent to accelerator discharge tube wipe with a CLEAN tissue to 75 remove residual contamination DO NOT BLOW WITH COMPRESSED AIR AFTER APPLYING SAFETY SOLVENT moisture and oil in the air may recontaminate the surfaces 72 Apply Locquic Primer T or Primer N to both 76 surfaces Allow primer to visibly dry 2 5 minutes before applying retaining compound Apply primer to accelerator discharge port in casting with a pipe cleaner wetted not saturated with primer Apply primer to discharge tube by wiping 73 Apply Loctite Retaining Compound RC 680 to the accelerator pump discharge tube brushing or wiping on approximately one half inch length of the tube end which is inserted into the accelerator discharge port approximately 1 16 inch from the end of tube DO NOT ALLOW RC 680 TO ENTER TUBE e TOOL M 134 LOCATING TUBE IN PLACE OVER PUMP DISCHARGE TUBE BOWL COVER SCREWS TEMPLATE IN PLACE ON BOWL CLEARANCE HOLE FOR NOZZLE FIGURE 18 With template M 134 in place assemble discharge tube into discharge port with a rotating motion to spread retaining compound Parts may be repositioned up to one minute after assembly After inserting pump discharge tube in place place l
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