ARO Bant-a-Matic 8245-B User manual

OPERATOR’S MANUAL
SECTION M102
INCLUDING:OPERATION,INSTALLATION& MAINTENANCE MANUAL 12
Tool Products
BANT-A-MATIC® SELF-FEED DRILLS
Released: 3-l 1-88
Revised: 1l-l 7-95
Models 8245-B( )-( ) and 8345-B( )-( ) Form: 3261-2
IMPORTANT: READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
OPERATING PRECAUTIONS RECOMMENDED LUBRICANTS
l
l
Keep hands and clothing away from rotating end of tool.
l
Wear suitable eye protection while operating tool.
Disconnect air supply from tool before removing/installing bit
or performing other maintenance procedures.
ROUTINE LUBRICATION REQUIREMENTS
Lackoforan excessive amount of lubrication will affect the perfor-
mance and life of this tool. Use only recommended lubricants at
below time intervals:
EVERY 8 HOURS OF TOOL OPERATION - Fill lubricator reser-
voir of recommended F.R.L. with spindle oil (29665).
EVERY 160 HOURS OF TOOL OPERATION - Inject NLGI #1
“EP” grease (33153) 1 to 2 strokes, thru grease fitting in gear
housing. NOTE: Spindle must be extended from outer sleeve suf-
ficiently to expose grease fitting in gear housing. Gearing should
contain approximately 1/8 oz. (3.5 g) of grease.
AIR SUPPLY REQUIREMENTS
Formaximum operating efficiency, the following airsupply specifi-
cations should be maintained to this air tool:
l AIR PRESSURE - 90 PSIG (6 bar)
l AIR FILTRATION - 50 micron
l LUBRICATED AIR SUPPLY
l HOSE SIZE - 5/16” (8 mm) I.D.
An ARO@model C28231-810 air line FILTER/REGULATOR/LU-
BRICATOR (F.R.L.) is recommended to maintain the above air
supply specifications.
MOUNTING
The nose end of the outer sleeve (41) is provided with 1-7/16” -
18L.H.threads [remove thread guard (47) for use] and a 1-7/1 6”x
1/2” long pilot diameter for fixture mounting. Foot and flange type
mounting brackets are available for tool mounting.
l
0
a
a
l
l
0
a
l
l
After disassembly iscomplete, all parts, except sealed orshielded
bearings, should be washed with solvent. To relubricate parts, or
for routine lubrication, use the following recommended lubricants:
Where Used ARO Part # Prescription
Air Motor 29665
“O” Rings & Lip Seals 1 qt. Spindle Oil
36460
Gears and Bearings
4 oz. Stringy Lubricant
33153 5 lb.“EP”- NLGI#1Grease
SET-UP PROCEDURE
WARNING: Keep clear of rotating end of unit with hands and/or
clothing. Keep fingers/hands from being pinched between hous-
ing or valves and adjustment screws and/or trip bracket.
Loosen two screws (29) and remove cover (1).
Allow a minimum distance of 1/4” between the drill point of the
unit and the workpiece. This is necessary for the air motor to
start and reach free speed before the drill point touches the
workpiece.
Determine the TOTAL STROKE LENGTH the drill must travel
to perform the drilling operation -see illustration below.
Loosen jam nut (8) and turn adjustment screw “A” so the dis-
tance between the end of the screw and the stud (26) equals
the total stroke length.
Tighten jam nut (8).
Loosen jam nut (8) and turn adjustment screw “B” (valve in-
head models only) so the distance between the end of the
screw and the button bleed valve (25) is slightly GREATER
than the distance set for adjustment screw “A”.
Start and let the unit advance until the adjustment screw “A”
makes contact with the stud (26).
Carefully, and be aware that the unit isgoing to retract, turn the
adjustment screw “B” until it depresses the button bleed valve
(25) enough to cause the unit to retract.
Tighten jam nut (8).
See “FEED RATE CONTROL VALVES”, page 2.
DEPTHOFDRILLINGOPERATION THISDISTANCEMUSTE
TOTALSTROKELENGTH
For parts and service information, contact your local ARO distributor, or the Customer Service Dept. of the Ingersoll-Rand Distribution
Center, White House, TN at PH: [phone], FAX: [phone].
ARO Tool Products
Ingersoll-Rand Company
1725 U.S. No. 1 North l P.O. Box 8000 l Southern Pines, NC 28388-8000
01995 THEAROCORPORATIONPRINTED IN U.S.A.

FEEDRATECONTROLVALVES REMOTEOPERATION
l Turnvalve(23), marked“R” ontop of housing,approximately1-1/2
turns counterclockwise (open).
l Turn the other valve (23), marked “F” on top of housing, clock-
wise until closed (do not tighten too snugly).
l Startunit andslowlyturnvalve(23) marked“F” counterclockwise
(open) until the desired forward rote of feed IS reached.
l Afinal adjustmentofthe rateof return(retract) con be madewith
the valve (23) marked “R” on housing.
MANUALOPERATION
l Install button bleedvalve (25) in eitherthe “F” portlocated attop
ofvalvehousingorthe “F” portlocatedatthe rearofvalvehousing
NOTE:Unused port must be plugged with pipe plug (24).
l Depressbutton bleed valve (25) marked “F” on valve housing.
Theunit will start in the forward (advancing) modeand continue
to feedforward until the adjustingscrew “B” hasdepressedbleed
valve (25) marked “R” to retract the unit Seeset-up procedure.
l A manual emergencyretract button bleed valve (25) con be In-
stalled in “R” port at top of valve housing if desired This valve
con beusedto immediately retractthe unit in caseof misaligned
port or other emergency.Valve not furnished.
Install a pressurebleedvalve- AROportnumber9600 - Invalve
port marked “F” at either the top or rear of valve housing.
Connect pressurebleed valve - using 1/8” i.d. tubing - to are-
mote operatedvalve which, when actuacted, feeds oil pressure
to the pressurebleed valve. Pressurebleed valve will bleed the
air from “F” portof valve housing causing spool valve in housing
to shiftto theforwardfeedpositionthus startingtheforwardstroke
of the unit
Install a pressurebleedvalve -ARO part number9600- in valve
port marked “R” at the top of the valve housing and connect -
using1/8” i.d.tubing- to o remoteMANUALLYoperatedvalve.This
valve is usedOSan emergencyretract in case of a part misalign-
ment or such only OSthe unit, when properlyset-upand applied,
will automatically retractand returnto the start position.Seeset-
up procedure.
Referto page 9 for plumbing and schematic diagrams.
SPECIALNOTE:Theair inlet and remoteportsof valve housing hove
taperedpipethreadsandshouldnotrequiretheuseofthreadsealants,
such OSsealanttapeor pipejoint compounds.Threadsealants,when
used improperly,can contaminate air passagesand cause valve or
unit to malfunction.
RECOMMENDEDPOWERAIR INLET SYSTEM
YourAROSelf-Feedtool is designedto deliver specific horsepower and thrust to achieve high rates of work. To assure the unit will develop this power, care
the power air inletsystemis correctly sizedto permitthe proper rate of air flow. Shown isa systemfor a single tool that will supply correct delivery. IMPORTANT
rated when 90 P.S.I.is present ATTHETOOLDURINGOPERATION.
Shown below is the same systemin schematic form.Shown below is the same systemin schematic form.
mustbe token that
- the tool is power
F = FILTER
R = REGULATOR
L = LUBRICATOR
It two or three units ore to be instolled, each unit should be supplied with a system like that shown below or use system like that above for each tool
FILTER MODEL F25231-110
REGULATOR MODEL R27231-100
LUBRICATOR MODEL L26221-110

SET-UPPROCEDUREWITHOPTIONAL
M102
HYDRAULICCHECK
12
.
.
.
.
. .
.
Assemble hydraulic check to mounting bracket and assemble end of the Hydraulic Check Rotateextendedspindle until the slot -
mounting bracketto tool using washers (Y14-8)and cap screws on the spindle is located midway between the highest and the -
(Y154-48). lowest settings
Measuredistance from drill point to work piece - distance “Y”.
l Startdrill unit and the drill wiII advance at a rapid rate until the
Distance “X” between hydraulic check plunger and trip bracket trip bracket contacts plunger of hydraulic check
must be lessthan distance “Y” to prevent damage to drill point
l Slowly rotatethe HydraulicFeedRatecounterclockwisefor faster
when it approaches the work piece. feed rate or clockwise for slower feed rote
Loosenthe cap screws (Y154-48)and position hydraulic check
to obtain correct setting for distance “X”.
Tighten cap screws (Y154-48)securely before operating unit.
Increasethe air flow thru the FeedControlValve marked “F” by
openingtwo (2) full turns from closed position.Thiswill allow drill
toadvancerapidlyuntil thetrip bracketcontactsplungerof hydraul-
ic check.
TheHydraulic FeedRateAdjustmentis located at the nameplate
TO CONTROLBREAKTHROUGH
l Positronhydraulic checksothe distance betweenthe plungerand
the trip bracket(distance “X”) ISlessthon the distance from the
drill point to the oppositeside of the work piece (distance “W”)
l Set-upof the self-feeddrill unit will be the some as explained in
Set-up Procedure,page 1.
ADJUSTMENTSCREW“B”
11/16”BITPENETRATION(33906 CHUCK) ADJUSTMENTSCREW 7
“A”-,
.
i
FEEDRATEADJUSTMENT
HYDRAULICCHECK(SEETABLE)
l MOUNTINGBRACKET40298
PARTS INDICATED BY ASTERISK (*) ARE INCLUDED
IN 40301-( ) HYDRAULIC CHECK ASSEMBLY. ,
SEEPAGE11 FOR HYDRAULIC CHECK DIMENSIONAL DATA.
Neverapply excessive pressureby a holding device which may
cause distortion of a part
Apply pressureevenly to parts which have a press fit.
Apply even pressureto the bearing race that will be pressfitted
to the mating part.
Usecorrect tools and fixtures when servicing this tool.
Don’t damage “0” rings when servicing this tool.
Useonly genuine AROreplacement parts for this tool. When or-
dering, specify pat-tnumber,description,tool model number and
serial number.
GEARINGDISASSEMBLY
_ Removechuck from tool.
_ Threadadjustment screws (6 and 7) all the way back and push
the piston rod (48) all the way forward to expose wrench flats
of motor housing (51) from the outer sleeve (41).
Usingwrenchesonflats of ring gearand motorhousing,unthread
- gearing from motor housing.
Iftool has double gearing,unthread ring gear (83) from ring gear
- (81).
DIRECTDRIVEMODELS:Unthread and remove bearing lock nut
- (103).
_ Graspring gear in one hand and tap the threaded end of spindle
with a softface hammer;spindleand componentswill loosenfrom
ring gear.
Removebearing(s)andshaftsfromspindleto removeplanetgears.
- To removebearings (84) from ring gear, remove lock nut (86).
48117-1GEARINGDISASSEMBLY
Removechuck from gearing.
- Threadadjustmentscrews (6 and 7) all the way back and push
the piston rod (48) all the way forward to expose wrench flats
of motor housing (51) from outer sleeve (41).
Usingwrencheson flats of ring gearand motorhousing,unthread
- gearing from motor housing.
Pull spindle (96) and components from ring gear.
- Removebearing (70) and shafts (71)to release gears (74).
Removebearing(70) andshafts(91),releasinggears(90 and89).
- Unthreadlock nut (86), releasingspindle (93) and bearing (94).
GEARINGASSEMBLY
_ Assemblegears to spindle and secure with shafts
Align notch at end of shaft with step on spindle (align notch of
- shaft with spacer (80) for auxiliary gearing).
- Pack bearing (70) with ARO33153 grease and assemble to
spindle.
- Lubricate gears of spindle liberally with ARO33153 grease and
assemble spindle to ring gear.
Packbearings(84) with ARO33153greaseand assembleto spin-
- dlewith the UNMARKEDfaces of bearingfacing each other (iden-
tification markings on bearing facing out).
_ Assembleseal (87) to lock nut (86) and secure bearings (84)
with lock nut.
DIRECTDRIVEMODELS:Assemblebearinglocknut(103)tospindle.
- Assemblegearing to tool.
_ Assemble chuck (88) to tool.
48117-1GEARINGASSEMBLY
_ Assemblegears (74) to spindle (96), securing with shafts (71).
_ Assemblegears(89 and 90) to spindle,securingwith shafts(91).
NOTE:Assure each shaft (91) contains 15 needle bearings.
3

DISASSEMBLY/ASSEMBLY INSTRUCTIONS
- Pack bearings (70) with ARO33153 grease and assemble to when reassemblingpartto the tool. Lubricateall “O” rings with ARO
spindle. 36460 “0” ring lubricant.
- Lubricate gears liberally with ARO33153 grease and assemble
spindle to ring gear.
Packbearings(94) with ARO33153greaseand assembleto spin-
- dle (93).
_ Assemblespindle and components to ring gear.
_ Assembleseal (87) to lock nut (86) and assembleto ring gear,
securing bearings.
_ Assembleretaining ring (36), “0” ring (37), “0” ring (39) and
screen (40) to muffler cap (38).
_ Assemblemufflercap (38), screenedendfirst,to-outersleeve(41)
from end of sleeve with internal threads. Push muffler cap into
sleeve until it bottoms against step in sleeve.
Assemblespindle nut (95) to spindle.
1 Assemblespacer (69) to bearing (70).
_ Assemblegearing to tool.
_ Assemblechuck (88) to spindle.
- Coattorque pin (42) with greaseto retain pin in place and as-
semble inside outer sleeve in hole provided.
_ Assemble“0” ring (50) to piston rod.
MOTORDISASSEMBLY
_ Removegearing from tool as previously outlined,
Removespacers(69) and (68) and motorassemblyfrom housing.
1 Removecap (52) and shield (53).
_ Graspcylinder in one hand and tap splined endof rotor(58) with
a soft faced hammer; motor will come apart.
- Assemblemotor housing and piston rod to outer sleevethru end
of sleevewith external threads and push piston rod thru muffler
cap using care notto damage “0” ring (37) contained in muffler
cap. Align slot in motor housing with torque pin (42).
Assembleseals(34) to piston(33) with lips of sealsfacing away
- from each other.
- Assemblepiston (33) to piston rod (48) and push piston on rod
until it seats against “O” ring (50) and step on rod.
_ Assembleretainingring(49) to groovein pistonrodsecuringpiston
on rod.
MOTORASSEMBLY
Pack open bearings with ARO33153 grease.
1 Assemblebearing (56) to end plate (55).
_ Assembleend plate (55) to rotor.
_ Coati.d. of cylinder (62) or (63) with spindle oil 29665 and as-
semblecylinder to end plate(55) aligning air inlet slot of cylinder
and end plate.
_ Assemblebearing race (32) and “0” ring (31) to piston rod and
slide them on rod until they seat against retaining ring (49).
Clamp valve housing (10) in a suitable holding device with the
-threaded end of housing upright.
_ Coat i.d. of air cylinder (35) with “0” ring lubricant 36460 ond
place air cylinder on valve housing (10) over “O” ring (28).
_ Coatrotorblades(59) with spindle oil 29665 and insertinto rotor
slots (straight side out).
- Using core not to damage “O” rings (11)contained in housing,
insertpistonrod(48) thru housingand carefullylocateoutersleeve
over air cylinder and thread sleeveto housing. Tighten securely
using a strap wrench.
_ Assemblebearing to front end plate and assembleend plate to
rotor and cylinder.
- Assemblemotor,gearing, trip bracket and componentsand as-
semble cover (1) to housing.
Besurerotordoesnot bind Jif rotorbinds,tap splined end of rotor
- lightly to loosen).
_ Assembleshield (53) and cap (52) to end plate (55).
_ Assemblemotor and spacers (68) and (69) to motor housing.
_ Assemblegearing to tool.
VALVEHOUSINGDISASSEMBLY
AIR PISTONDISASSEMBLY
Thevalve body(14),feedcontrolvalves(23) and button bleedvalves
(25) can beservicedwithout removingoutersleevefrom valve hous-
ing.Togain accessto checkvalves(17)and componentsor “0” rings
(11),follow disassembly procedure for removing the air piston.
Removegearing and motor assembly as outlined.
1 Removecover (1).adapter (3), washer (4) and trip bracket (5).
Place valve housing in a suitable holding device with the outer
- sleeve (41) in an upright position.
_ Removeboth caps (12)and “0” rings (13)-models 8245-B()-( )
- Usinga strapwrench on outersleeve(41),unthread(L.H.threads)
and CAUTIOUSLYremoveouter sleeve straight up and off from
valvehousingto preventbending of air cylinder (35) and damag-
ing the inside diameter.
- Push valve body (14) out thru housing. Handle valve body with
reasonable care so the o.d. of valve is not damaged.
_ Button bleed valves (25) need not be removed except for
replacement. l
VALVEHOUSINGASSEMBLY
- Handlethe air cylinder (35) with careso itsfine cylindrical shape
is not distorted in any manner.
- If the air cylinder remains inside the outer sleevewhen sleeve is
removed,pushthe piston rod(48) forward then pull it backward.
The cylinder will then extend from the sleeve and can now be
removed.
Replace all“O” rings with new ones.
1 Assemble“0” rings(22) to needlevalves(23) and assemblenee-
dle valves to housing.
_ Assembleplate (97) to housing, securing with screws (98).
_ Remove“0” ring (31),bearing race (32) and retaining ring (49).
- Push piston rod and motor housing out thru gear end of outer
sleeve.Piston(33) will drop out when motor housing and piston
rod ore removedfrom outer sleeve.
Inserta suitable rodthru gear end of outersleeveand push muf-
- fler cop (38) out thru valve end of outer sleeve.
Pistonrod (48) and motor housing (51) are secured with a hard
- dryingthread adhesive.If it should becomenecessaryto separate
thesetwo parts,heatthethreaded area lightly to softenthe adhe-
sive and unthread the rod from the housing (R.H.threads).
- Lubricate“O” ring(15)with 36460 lubricantandassembleto valve
body - models 8245-B()-() only.
_ Assemblevalvebodyto housingand assemblecaps(12)with “0”
rings (13) to housing.
If check valve(s) (17)have been removed,assemble“0” ring(s)
- (16) to valve(s) and assemblevalve(s) to housing.
- Assemblespring(s) (18) to housing.
Assemble “O” ring (20) to screw plug (21) and assemble to
- housing.
_ Assemblescrew plug (19)to housing- models8245-B()-( ) only.
_ Assembleouter sleeveand componentsto housing as described
in air piston assembly section.
AIR PISTONASSEMBLY
NOTICE:When a part containing “O” rings has been removedfrom
tool,it is recommendedthat the “0” ringsbe replacedwith new ones
4

77
I 70
M102
12
4.83:1 RED.
4.83:1 RED.
I
74
n
I
n
72
n
70
1:1 RED.
5

PART NUMBER FORORDERING PANT NUMBER FORORDERING
88
90
91
92
94
95
96
6
DriveGearingAss’y(8:1)includes items70,
71(2 req’d),73,74(2 req’d) and 83 thru 87
Chuck
Sun Gear (7 interior - 15exterior teeth)
Gear (2 req’d) 16teeth
Shaft(2 req’d) (includes 15needlebearings
per shaft).
Ring Gear(includes grease fitting 35967)
Spindle
Bearing (2 req’d)
Spindle Nut ,.
Spindle.
.
97
98
99
100
101
102
103
104
105
DriveGearingAss’y(1.88:1)includes items
69, 70 (2 req’d), 71(2 req’d), 74(2 req’d),
86, 87, 89, 90 (2 req’d), 91(2 req’d), 92,
93, 94 (2 req’d), 95 and 96
Plate
Screw (2 req’d)
Spindle
Ring Gear
Lock Ring
Seal
Bearing Lock Nut
Collet
Collet Nut : : : : : : : : : : : : : : :
48117-1
48440-1
Y211-1
38723
38248-1
38719
38720
38718
31812-8
38721

M102
12
-
\
28 27
I P
25
* ASSEMBLEWITH THREAD ADHESIVE SUCH AS LOCTITE 242

PART NUMBER FORORDERING
I
1
PART NUMBER FORORDERING
Cover
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22:
23
24
25
26
27
28
19
30
31
32
33
34
35
models 8245-B()-1 and 8345-B()-1
models 8245-B()-2 and 8345-B()-2
models 8245-80-3 and 8345-80-3
Pipe Plug
Adapter
Lock Washer
Trip Bracket
models 8245-B()-()
models 8345-B()-( )
Adjustment Screw “A”
models 8245-B()-1,-2and 8345-B()-1,-2
models 8245-B( )-3and 8345-B()-3
Adjustment Screw “B”
model 8245-80-l
models 8245-B( )-2and 8245-B()-3
Nut [2 req’d on models 8245-B()-( )]
Pipe Nipple
models 8245-B()-1 and 8345-B()-1
models 8245-B()-2,-3 and 8345-B()-2,-3
Valve Housing
models 8245-B()-1 and 8245-B()-2
models 8245-B()-3
models 8345-B()-1 and 8345-B()-2
models 8345-B()-3
“0” Ring (3 req’d)
Cap (2 req’d)(models 8245-B()-() only)
“0” Ring (2 req’d)(models 8245-B()-( )
only)
Valve Body (models 8245-B()-( ) only)
“O” Ring (5 req’d)(models 8245-B()-( )
only)
“O” Ring(2 req’d on models 8245-B()-( ))
Check Valve (2 req’d on models
8245-B()-( ))
Spring [2 req’d on models 8245-B()-( )]
Screw Plug (models 8245-B()-() only)
“0” Ring
Screw Plug
“O” Ring[2 req’d on’models 8245-B()-( )]
NeedleValve (2 req’d on models
8245-B()-( )]
Pipe Plug (2 req’d)
Button Bleed Valve (2 req’d on models
8245-B()-( ) only]
Stud.........
“O” Ring
“O” Ring. : : : : : : : :
Screw (2 req’d)
Washer (2 req’d) : :
Housing and Valve Assembly
(includes items 10 thru 30, 97 and 98
models 8245-B()-1 and 8245-B()-2
model 8245-B()-3
includes items10,11,16,17,18,20 thru 24,
26 thru 30, 97 and 98
models 8345-B()-1 and 8345-B()-2
model 8345-B( )-3
“O” Ring. : : : : :
Bearing Race.
Piston
36
Seal (2 req”d) I : : :
Air Cylinder
models 8245-80-l and 8345-80-l
models 8245-B()-2 and 8345-B()-2
models 8245-B()-3 and 8345-B()-3
Retaining Ring
“O” Ring
Muffler Cap
“O” Ring
Screen
t
40294-l
40294
40294-2
Y227-2-L
44883
Y14-616
41713-2
41713-1
40292-2
40292-3
40292-l
40292-2
Y11-4-C
40857-5-l
40857-7-l
40285
40799
41298-1
41298-2
34276
46696
Y325-12
40287
41082
Y325-2
39587
35733
39652
Y325-3
38863
Y325-7
48441-1
Y227-2-L
24130
46558
Y325-26
Y325-24
Y154-19
Y14-4
40813-l
40813-2
41301-3
41301-4
41534
42364
39459-1
35922
39458-1
39458
39458-2
39471
Y325-16
39456
Y325-24
39461
41
42
43
45
46
47
48
49
50
51
52
53
55
56
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
81
84
83
84
86
87
OuterSleeve
models 8245-B()-1 and 8345-B()-1
models 8245B( )-2 and 8345-B()-2
models 8245-B()-3 and 8345-B()-3
Torque Pin
Muffler
Manifold (includes items 45 and 46)
Set Screw
“0” Ring (2 req’d)
Thread Guard : :
Piston Rod
models 8245-B()-1 and 8345-B( )-1
models 8245-B()-2 and 8345-B()-2
models 8245-B()-3 and 8345-B( )-3
Retaining Ring
“O” Ring (2 req’d) : : : : : : :
Motor Housing
models 8245-B()-1,-2and 8345-B( )-1,-2
models 8245-B( )-3and 8345-B()-3
Cap
Shield.
RearEnd Plate: : : : : : :
Bearing.
Rotor
7 teeth, used with motor ass’y 33654-2
12teeth, used with motor ass’y 34746-2
Blade (5 req’d)
Roll Pin. : : : : : : : :
Roll Pin.
Cylinder (includes items 60 and 61) : :
Cylinder (includes item 60)
Front End Plate,used with motor 33654-2
Bearing.
Front End Plate, used with motor‘347462
Bearing.
Motor Assembly
for 2700 r.p.m. models
for 900, 4400 and 19000 r.p.m. models
Spacer
Spacer
Bearing .: ::.....:.,
Shaft (2 req’d)
Spline Driver
Spindle
Gear (2 req’d) 20teeth : : : : : : :
Shaft (2 req’d)
Spindle
Gear (2 req’d) 17teeth’ : : : : :
Shaft (2 req’d)
Spindle. : : : :
Spacer :
Ring Gear : : : : : :
Retaining Ring
Ring Gear (includes greasefitting’ 35967)
used with 4.83:1and 23.3:1gearing (46
teeth)
used with 1:1and 8:1 gearing (49 teeth)
Bearing (2 req’d)
used with 4.83:1and 8:1 gearing
used with 1:1gearing
Spindle Nut
Lock Nut,
Seal
Auxiliary Gearing Ass’y (4.83:1) includes :
items70 (2 req’d),77(2 req’d),78(2 req’d),
79,80, 81and 82
DriveGearingAss’y(1:1)includes items70,
71(2 req’d),72, 84(2 req’d)and 99 thru 105
DriveGearingAss’y(4.83:1)includes items
70,75(2 req’d),76,77(2 req’d)and83thru
87..........................
40750
40295
40800
40297-1
43551-2
41204
Y29-82 .
Y325-29
35912
10751-1
40293-1
40801-1
Y145-20
Y325-13
40296
40802
39466
39465
33096
38232
33026-l
34734-l
32860
33416
1178-l
33397
34747
33024
32851
34742
Y65-8
33654-2
34746-2
34737
33018
32850
38251
38108
39467
33048
38722
39468
34745
34735
35915
34736
35914
35900
39481
39482
18305-l
34682
38893-l
38250
38895
36017
38724-2
39478

BASICREMOTECONTROLFORSTART M102
AND EMERGENCYRETRACTFUNCTIONS
12
‘OUT’PORT
3-WAYPALMBUTTONVALVE(MODEL461-2).
REDBUTTONWITHOUTGUARD lNSTANTTUBE
CONNECTIONSAND SPRING RETURN
‘PACKAGED10TOA BOX
REMOTEOPERATION
Remoteoperation of the unit may be achieved by Connectinga 3-way valve to the remote start and/or remote retract ports, as shown above.
TOSTART- depressthe remotebutton momentarily.The unit will advance the drill to a preset depth and automatically retract to theinitial position whereuponme unit will stop.
EMERGENCYRETRACT- depressthe emergencybuttonmomentarily.Thissignal to the unitwill shift the built-inpressureoperated valve, commandingthe unitto retract immediately
to the initial position whereupon the unit will stop.
NOTE:MANUALSTARTand EMERGENCYRETRACTbuttonson the tool ore fully operational even when remote control is used.The manually operated buttons can be used when
set-up is required.
Shown below is the same systemin schematic farm.
MODEL 8345-B( )-( )
CONNECTED70 “IN” PORT
TH MALECONNECTOR S9474-004 l
I-WAY VALVE(MODEL5040-10 SHOWN)
2-POSITlON,MANUALRETURN
1/8” N.P. T.F.PORTS
TUBING59690( ). SEETABLE
l PACKAGED 10 TO A BOX
REMOTEOPERATION
Remoteoperation is achieved by connectinga4-way valve to the remote start and retract ports asshown above. Thisvalve supplies power directly to the feed piston in the tool.
TOSTART- move lever forward. Theunit will advance to o preset depth (adjustment screw contacts stud on valve housing)
TORETRACT- move lever rearward (back), The unit will retract to the initial position.
EMERGENCYRETRACT- the unit will retract at any time the lever is movedto the rearward (bock) position.Themotor runs continuouslyas long asair pressureis present at the
air inlet to the tool. A shut-off valve should be installed in theair inlet Lineto completely shut the tool off in case of an emergency.
Shown below is the some systemin schematic form.
9

SERVICE KIT NO. 41205-l
FOR SERVICING ONE MODEL 8245-B( )-( ) or 8345-B( )-( ) EXCEPT
8245-B30-( ), 8345-B30-( ) or 8245-101-( )
QTY PARTNO. DESCRIPTION QTY PARTNO. DESCRIPTION
1 38232 Bear 1 41799 Gear Lube
5 32860 Blade
3 34276 “O” Ring
2 35733 Spring
2 35922 Seal
1 39461 Screen
1 39466 Cap
5 41082 “O” Ring
1 41534 “O” Ring
1 41795 Motor Oil
1 41954
2 Y325-2
1 Y325-3
2 Y325-7
2 Y325-12
2 Y325-13
1 Y325-16
2 Y325-24
1 Y325-26
“O” Ring Lube
Bearing
“O” Ring
“O” Ring
“O” Ring
“O” Ring
“O” Ring
“O” Ring
“O” Ring
“O” Ring
SERVICE KIT NO. 41310-1
FORSERVICINGONE MODEL 8245-B30-( ), 8345-B30-( ) or 8245-101-( )
QTY PARTNO. DESCRIPTION QTY PARTNO. DESCRIPTION
1 38232 Bearing 1 41795 Motor Oil
1 32851 Bearing 1 41799 Gear Lube
5 32860 Blade 1 41954
3 34276 “O” Ring Lube “O” Ring 2 Y325-2 “O” Ring
2 35733 Spring 1 Y325-3
2 35922 “O” Ring Seal 2 Y325-7 “O” Ring
1 39461 Screen 2 Y325-12 “O” Ring
1 39466 Cap 2 Y325-13 “O” Ring
1 Y325-16 “O” Ring
5 41082 “O” Ring 2 Y325-24 “O” Ring
“O” Ring 1 Y325-26 “O” Ring
PISTON
SECTION
I MODEL NUMBER R.P.M. 1
MOTOR
AUXILIARY
8245-B8-( ) 8345-B8-( ) 900 34746-2 36017 39478 ,
-----
23.3:1
8245-B30-( ) 8345-B30-( ) 2700 33654-2 39479 8:l
8245-B45-( ) 8345-B45-( ) 4400 34746-2 39478 4.83:1
I
8245-203-( ) 8345-203-() 19.000
34746-2
8245-101-() I 110,000 1 33654-2 1 1 48117-1
I
GEARING
SECTION
MODELS WITH -EU SUFFIX ARE “EC” COMPLIANT MODELS.
10

TROUBLESHOOTING
M102
12
LISTEDBELOWARESOMEOFTHEMOSTCOMMONCAUSESFORTHESELF-FEEDDRILLTOMALFUNCTION.MALFUNCTIONSBEYONDTHESCOPE
OFTHISMANUALSHOULDBEBROUGHTTOTHEATTENTlONOFYOURAROREPRESENTATIVEORRETURNTHETOOLTOFACTORYFORREPAIR.
CONDITION
Failure to feed or
irregularorerraticfeed.
Low speed or motor
fails to operate.
Motor continues to
run after retraction.
Failure to retract.
POSSIBLECAUSE
1.Inadequate air supply
2. Feedcontrol valves improp-
erly adjusted.
3. Air leak around cap (12).
4. Dirt or damaged “O”rings on
spool valve (14).
5. Clogged air passage in valve
housing.
1.Inadequate air supply.
2. Clogged air passage in valve
housing.
1.Piston not fully retracted.
2. Damaged “O”ring (11)inside
valve housing.
1.Improper adjustment or align-
ment between adjustment screw
and button bleed valve.
2. Feedcontrol valves (23) improp
erly adjusted or dirty
3. Air leak around cap (12).
4. Damaged “O”rings in muffler cap,
valve housing or spool valve or
seals on piston.
5. Clogged air passage in valve
housing.
CORRECTIVEACTION
1 Check air supply for correct regulator adjustment (90 p.s.i.g.
max. when tool isoperating).
2. Referto set-up procedure, page 1
3. Checkfor damage to“O” ring. Checkand insure caps are properly
tightened.
4. Refer to valve section, page 4, and remove spool valve
Inspect, clean and replace “O”rings
5. Removevalve housing from tool. Disassembleand blow all air
passagesclear of debris.
1.Check air supply for correct regulator adjustment
2. Removevalve housing from tool. Disassembleand blow all air
passages clear of debris.
1.Insure piston is not obstructed and is returned all the way back
2.Removevalve housing from tool. Replace“O” rings.
Referto set-up procedure, page 1.
2. Check adjustment, refer to page 2. Remove, inspect and
clean.
3.Checkfor damageto“O” ring. Checkand insure caps are properly
tightened.
4.Disassemble,inspect and replace “O”rings and/or seals.
5.Removevalve housing from tool. Disassembleand blow air
passagesclear of debris.
ACCESSORIES

DIMENSIONAL DATA
12
PN 49999-030