Ingersoll-Rand 8246-D Disassembly/Assemblyinstructions, Gearingdisassembly, AIR Pistonassembly

				DISASSEMBLY/ASSEMBLYINSTRUCTIONS					M104
				GEARINGDISASSEMBLY		rod are removed from outer sleeve.			13
					-Insert		a suitable rod thru gear end of outer sleeve and push muf-
-Remove				tapper attachment from tool.		fler cap (38) out thru valve end of outer sleeve.
-Thread			adjustment screws (6) and (7) all the way bock and push		-Piston		rod (48) and motor housing (51) ore secured with a hard
the piston rod (48) all the way forward to expose wrench flats						drying thread adhesive.If it should become necessaryto separate
of motor housing (51) from the outer sleeve (41).						these two parts, heat the threaded area lightly to soften the adhe-
-Using		wrenches on flats of ring gear and motor housing, unthread				sive and unthread the rod from the housing (R.H.threads).
gearing from motor housing.								AIR PISTONASSEMBLY
_Unthread				ring gear (83) from ring gear (81 or 88).
-Grasp		ring gear in one hand and tap the threaded end of the spin-			NOTICE:When a part containing “O”rings has been removed from
dle with a soft faced hammer; spindle and components will loos-					tool, it is recommendedthat the “O”rings be replaced with new ones
en from ring gear.					when reassembling port to the tool. Lubricate				all“O”rings with ARO
-Remove bearing(s)and shafts fromspindleto removeplanetgears.					36460 “0”ring lubricant.
-To	remove bearings (84) from ring gear, remove lock nut (86).				-Assemble			retaining ring (36), “O”ring (37), “O”ring (39) and
				GEARINGASSEMBLY		screen (40) to muffler cap (38).
					-Assemble			muffler cap (38), screenedend first,to outersleeve(41)
-Assemble				gears to spindle and secure with shafts.		from end of sleeve with internal threads. Push muffler cop into
-Align		notch at end of shaft with step on spindle (align notch of				sleeve until it bottoms against step in sleeve.
shaft with spacer (72 or 80) for auxiliary gearing).					-Coat		torque pin (42) with grease to retain pin in place and as-
-Pack		bearing (70) with ARO 33153 grease and assemble to				semble inside outer sleeve in hole provided.
spindle.					-Assemble			“O”ring (50) to piston rod.
-Lubricate				gears of spindle liberally with ARO33153 grease and	-Assemble			motor housing and piston rod to outer sleevethru end
assemble spindle to ring gear.						of sleeve with external threads and push piston rod thru muffler
-Pack		bearings (84) with ARO33153greaseand assembleto spin-				cap, usingcare not to damage “O”ring (37) contained in muffler
dle with the unmarked faces of bearing facing each other (iden-						cap. Align slot in motor housing with torque pin (42).
tification				markings on bearing facing out).	-Assemble			seals (34) to piston (33),with lips of seals facing away
-Assemble				seal (87) to lock nut (86) and secure bearings (84)		from each other.
with lock nut.					-Assemble			piston (33) to piston rod (48) and push piston on rod
-Assemble				spindle nut (85) to spindle (drive gearing only),		until it seats against “O”ring (50) and step on rod.
-Assemble				gearing to tool.	-Assemble			retainingring (49) to groovein pistonrod, securingpiston
-Assemble				tapper attachment to tool.		on rod.
				MOTORDISASSEMBLY	-Assemble bearing race (32) and “O”ring (31) to piston rod and
						slide them on rod until they seat against retaining ring (49).
-Remove				gearing from tool as previously outlined.	-Clamp		valve housing (10) in a suitable holding device with the
-Remove			spacers (69 and 68) and motor assemblyfrom housing.			threaded end of housing upright.
-Remove				cap (52) and shield (53).	-Coat		i.d. of air cylinder (35) with “O”ring lubricant 36460 and
-Grasp		cylinder in one hand and top splined end of rotor (58) with				place air cylinder on valve housing (10) over “O”ring (28).
a soft faced hammer; motor will come apart					-Using		care not to damage “O”rings (11)contained in housing,
				MOTORASSEMBLY		insert pistonrod (48) thru housing and carefully locate outersleeve
						over air cylinder and thread sleeve to housing. Tighten securely
-Pack		open bearings with ARO33153 grease.				using a strap wrench.
-Assemble				bearing (56) to end plate (55).	-Assemble			motor, gearing, trip bracket and components and as-
-Assemble				end plate (55) to rotor.		semble cover (1) to housing.
-Coot i.d. of cylinder (62 or 63) with spindle oil 29665 and assem-								VALVE HOUSINGDISASSEMBLY
ble cylinder to end plate (55) aligning airinlet slot of cylinder and
end plate.					Thevalve body (14),feed control valves (23) and button bleed valves
-Coot rotor blades (59) with spindle oil 29665 and insert into rotor					(25) can be serviced without removing outer sleevefrom valve hous-
slots (straight side out).					ing. Togain accessto check valves (17)and componentsor “O”rings
-Assemble				bearing to front end plate and assemble end plate to	(11),follow disassembly procedure for removing the air piston. .
rotor and cylinder.					-Remove			both caps (12) and “O”rings (13).
-Be	sure rotor does not bind (if rotor binds, tap splined end of rotor				-Push		valve body (14) out thru housing. Handle valve body with
lightly to loosen).						reasonable core so the o.d. of valve is not damaged.
-Assemble				shield (53) and cop (52) to end plate (55).	-Button		bleed valves (25) need not be		removed except for
-Assemble				motor and spacers (68 and 69) to motor houslng.		replacement.
-Assemble gearing to tool.								VALVE HOUSINGASSEMBLY
				AIR PISTONDISASSEMBLY
					-Replace			all “O”rings with new ones.
-Remove			gearing and motor assembly OSoutlined		-Lubricate			“O”ring (15) with 36460 lubricant and assembleto valve
-Remove			cover (1), adapter (3), washer (4) and trip bracket (5).			body.
-Place		valve housing in o suitable holding device with the outer			-	Assemble“O”rings (22) to needlevalves (23) and assemblenee-
sleeve (41) in on upright position.						dle valves to housing.
-Using		a Strap wrench on outer sleeve(41),unthread (L.H.threads)			-	Assemble plate (89) to housing, securing with screws (90).
and CAUTIOUSLYremove outer sleeve straight up and off from					-Assemble			valve body to housing and assemblecops (12)with “0”
valve housing to preventbending of air cylinder (35) and damag-						rings (13) to housing.
ing the inside diameter.					-If	check valves (17) have been removed,assemble “O”rings (16)
-Handle		the air cylinder (35) with core so its fine cylindrical shape				to valves and assemble valves to housing.
isnot		distorted in any manner.			-Assemble			springs (18) to housing.
-If	the air cylinder remains inside the outer sleeve when sleeve is				-Assemble			“O”ring (20) to screw plug (21) and assemble to
removed,push the piston rod (48) forward then pull it backward						housing.
The cylinder will then extend from the sleeve and con now be					-Assemble			screw plug (19) to housing.
removed.					-Assemble			outer sleeve and componentsto housing as described

in air piston assembly section.