ARO SR051B series Manuale dell'operatore - Pagina 5

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DISASSEMBLY/ASSEMBLY

INSTRUCTIONS

Never apply excessive

pressure by a holding device which

may cause distortion of a part.

Apply pressureevenly

to parts which have a press fit:

Apply even pressure to the bearing race that will be press

fitted to the mating part.

Use correct tools and fixtures when servicing this tool.

Don't damage "0" rings when servicing this tool.

Use only genuine ARO replacement

parts for this tool. When

ordering, specify part number, description, tool model number

and serial number.

RIGHT-ANGLE

DISASSEMBLY

Using wrenches on flats of clutch housing or ring gear and lock

nut (102), loosen nut completely

and pull right-angle

assem-

bly from tool - LEFT HAND THREADS.

Remove lock nut (124 or 142) or finder housing (118 or 138)

releasing drive assembly.

Remove lock nut (99) from housing -LEFT HAND THREADS.

Do not disassemble

further unless damage is evident. To dis-

assemble,

pull pinion (96 or 107) from housing.

Remove retaining ring (93 or 104) and spacer (94 or 105) to

allow removal of needle bearing.

RIGHT-ANGLE

ASSEMBLY

Lubricate bearings with ARO 33153 grease before assembly.

Assemble bearing (95 or 106) and spacer (94 or 105) to pin-

ion, securing with retaining ring (93 or 104). NOTE: Bearing

(106) is to be located .600" from shoulder on pinion (see il-

lustration below).

Assemble bearing (100) to pinion, pressing on inner race of

bearing.

Assemble

pinion and components

to housing, pressing on

outer race of bearing.

Assemble lock nut (99) to housing -LEFT HAND THREADS -

securing pinion.

Apply approximately

3/32 oz. of grease to right-angle

gearing

upon assembly.

Assemble

drive assembly

to lock nut (124 or 142) or finder

housing (118 or 138) and assemble

to right-angle

- LEFT

HAND THREADS.

Assemble lock nut (102) to housing, securing with snap ring

(101).

Assemble coupling (92) to pinion and assemble

right-angle

housing and components

to tool, securing with lock nut (102)

- LEFT HAND THREADS.

CLUTCH

DISASSEMBLY

Remove right-angle

assembly from tool.

Clamp tool in a smooth face vise, clamping on inlet adapter (2).

Remove clutch housing using a strap type wrench - LEFT

HAND THREADS.

Remove clutch assembly from tool.

ADJUSTABLE

BALL CLUTCH

Clamp drive end of driven jaw (69) in a smooth face vise, being

careful not to damage driven jaw.

Remove snap ring (71).

M32

Using a 7/8" wrench, remove adjustment

nut (72).

Remove adjustment

washer (59) and clutch spring (60).

Remove snap ring (61).

Slide off thrust pad (62) two thrust washers (63) and thrust

bearing (73).

Remove ball carrier (64) and ten balls (66).

Remove retaining ring (70) and pin (68), then rotate driven jaw to

remove twelve balls (67). Separate driven jaw and spindle (65).

AUTO SHUT-OFF

CLUTCH

Clamp drive end of driven jaw (88) in a smooth face vise, being

careful not to damage driven jaw.

Remove snap ring (71).

Using a 7/8" wrench, remove adjustment

nut (72).

Remove adjustment

washer (75) and clutch spring (76).

Remove retaining rings (77).

Slide off guide (78) spring (79). ball sleeve (80) thrust race

(81) and thrust bearing (73). NOTE: Removal of ball sleeve

(80) releases six balls (85) and plunger (83).

Remove thrust race (82) releasing six balls (87).

Remove retaining ring (89) then rotate driven jaw to remove

twelve balls (86). Separate

driven jaw and spindle (84) re-

leasing eleven balls (86).

CLUTCH

ASSEMBLY

For clutch part lubrication, use ARO 40036-1 grease on parts

as pointed out in this section.

ADJUSTABLE

BALL CLUTCH

Lubricate ball groove of spindle (65):

Assemble

spindle into driven jaw (69) aligning ball groove

with hole in driven jaw.

Install twelve balls (67) and pin (68) into hole, then secure with

retaining ring (70).

Lubricate ball pockets of driven jaw (69) and install ball carrier

(64) and ten balls (66).

Lubricate and assemble one thrust washer (63) thrust bear-

ing (73) other thrust washer (63) and thrust pad (62).

Install snap ring (61).

Install clutch spring (60) adjustment washer (59) and adjust-

ment nut (72).

Install snap ring (71).

Lubricate bearing (74) with ARO 33153 grease and assemble

to driven jaw, pressing on inner race of bearing.

Assemble clutch assembly to tool.

Assemble clutch housing (91) to tool - LEFT HAND THREADS.

Assemble

THREADS.

right-angle

assembly

to tool - LEFT HAND

See clutch adjustment.

AUTO SHUT-OFF

CLUTCH

Lubricate ball grooves of spindle (84).

Install eleven balls (86) into groove.

Assemble spindle into driven jaw (88) securing balls.

Assemble

twelve balls (86) into driven jaw, then secure with

retaining ring (89).

Lubricate ball pockets of driven jaw and install six balls (87)

into pockets, securing with thrust race (82).

Lubricate and assemble

thrust bearing (73) and thrust race

(81) to spindle.

Coat plunger (83) with spindle oil 29665 and assemble

spindle, securing with balls (85). NOTE: Assembletwo

balls

per hole.

Secure balls with ball sleeve (80).

Assemble spring (79) and guide (78) to spindle, securing with

retaining rings (77).

Install clutch spring (76).

Lubricate face of adjustment washer (75) and install on spindle.