ARO Bant-A-Matic 8248-B Panduan Operator - Halaman 9

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Halaman Cetak

DISASSEMBLY/ASSEMBLY INSTRUCTIONS

M106

GEARING ASSEMBLY

-Assemble gears 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 ARO 33153 grease and assemble to

spindle.

-Lubricate gears of spindle liberally with ARO 33153 grease and

assemble spindle to ring gear.

-Pack bearings (84) with ARO 33153 grease and assemble to spin-

dle with the UNMARKED faces of bearing facing each other (iden-

tification markings on bearing facing out).

-Assemble spindle nut (85) to spindle (drive gearing only).

-Assemble gearing and twin drill attachment to tool.

MOTOR DISASSEMBLY

-Remove gearing from tool as previously outlined.

-Remove spacers (69 and 68) and motor assembly from housing.

-Remove cap (52) and shield (53).

-Grasp cylinder in one hand and tap splined end of rotor (58) with

a soft faced hammer; motor will come apart

MOTOR ASSEMBLY

-Pack open bearings with ARO 33153 grease.

-Assemble bearing (56) to end plate (55).

-Assemble end plate (55) to rotor.

-Coat i.d. of cylinder (62 or 63) with spindle oil 29665 and assem-

ble cylinder to end plate (55), aligning air inlet slot of cylinder

and end plate.

-Coat rotor blades (59) with spindle oil 29665 and insert in rotor

slots (straight side out).

-Assemble bearing to front end plate and assemble end plate to

rotor and cylinder.

-Be sure rotor does not bind (if rotor binds tap splined end of rotor

lightly to loosen).

-Assemble shield (53) and cap (52) to end plate (55).

-Assemble motor and spacers (68 and 69) to motor housing

-Assemble gearing and twin drill attachment to tool.

AIR PISTON DISASSEMBLY

-Remove twin drill attachment, gearing and motor assembly as out-

lined elsewhere in this manual.

-Remove cover (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.

-Using a strop type wrench on outer sleeve (41), unthread (L.H

threads) and CAUTIOUSLY remove outer sleeve straight up and

off from valve houslng to prevent bending of air cylinder (35) and

damaging the inside diameter

-Handle the air cylinder (35) with care so its fine cylindrical shape

is not distorted in any manner.

-If the air cylinder remains inside the outer sleeve when sleeve IS

removed, push the piston rod (48) forward then pull it backward

The cylinder will then extend from the sleeve and can now be

removed.

-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 are removed from outer sleeve.

- Insert

a suitable rod thru gear end of outer sleeve and push muf-

fler cop (38) out thru valve end of outer sleeve

-Piston rod (48) and motor housing (51) are secured with a hard

drying thread adhesive. If it should become necessary to separate

these two parts, heat the threaded area lightly to soften the adhe-

sive and unthread the rod from the housing - R.H. threads.

AIR PISTON ASSEMBLY

NOTICE: When a part containing "0" rings has been removed from

tool, it is recommended that the "0" rings be replaced with new ones

when reassembling part to the tool. Lubricate all "0" rings with ARO

36460 "0" ring lubricant.

-Assemble retaining ring (36), "0" ring (37), "0" ring (39) and

screen (40) to muffler cap (38).

-Assemble muffler cap (38) -screened end first-to outer sleeve

(41) from end of sleeve with internal threads. Push muffler cop

into sleeve until it bottoms against step in sleeve.

-Coat torque pin (42) with grease to retain pin in place and as-

semble inside outer sleeve in hole provided

-Assemble "0" ring (50) to piston rod

-Assemble motor housing and piston rod to outer sleeve thru end

of sleeve with external threads and push piston rod thru muffler

cop using core not to damage "0" ring (37) contained in muffler

cap. Align slot in motor housing with torque pin (42).

-Assemble seals (34) to piston (33) with lips of seals facing away

from each other.

-Assemble piston (33) to piston rod (48) and push piston on rod

until it seats against "0" ring (50) and step on rod.

-Assemble retaining ring (49) to groove in piston rod, securing

piston on rod.

-Assemble bearing 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 and

place air cylinder on valve housing (10) over "0" ring (28).

-Using care not to damage "0" rings (11) contained in housing,

insert piston rod (48) thru housing and carefully locate outer sleeve

over air cylinder and threaded sleeve to housing. Tighten securely

using a strap wrench.

-Assemble motor, gearing, drill attachment, trip bracket and com-

ponents and assemble cover (1) to housing.

VALVE HOUSING DISASSEMBLY

The valve body (14), feed control valves (23) and button bleed valves

(25) can be serviced without removing outer sleeve from valve hous-

ing. To gain access to check valves (17) and components or "0" rings

(11), follow disassembly procedure for removing the air piston.

-Remove both caps (12) and "0" rings (13).

-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.

VALVE HOUSING ASSEMBLY

-Replace all "0" rings with new ones

-Lubricate "0" rings (15) with 36460 lubricant and assemble to

valve body.

- Assemble "0" rings (22) to needle valves (23) and assemble nee-

dle valves to housing.

Assemble plate (126) to housing, securing with screws (127)

IAssemble valve body to housing and assemble caps (12) with "0"

rings (13) to housing.

-If check valves (17) have been removed, assemble "0" rings (16)

to valves and assemble valves to housing.

-Assemble springs (18) to housing.

-Assemble "0" ring (20) to screw plug (21) and assemble to

housing

-Assemble screw plug (19) to housing

-Assemble outer sleeve and components to housing as described

in air piston assembly section.