ARO DR021B Manuel de l'opérateur - Page 4

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I
MODEL NUMBER
GEARING
RED.
DR023B-5(
)
DR025B-5(
)
44.49:1
DR021B-7-( )
DR023B-11-( ) DR025B-11-( )
22.87:1
DR021B-15-()
DR023B-21-()
DR025B-21-()
11.76:1
DR021B-26-( )
DR023B-37-()
6.67:1
DR021B-50-( )
DR023B-73-( ) DR025B-73-( )
3.43:1
DR021B-170-()
.
MODELS WITH -EU SUFFIX ARE "EC" COMPLIANT
MODELS.
* FOR MODELS DR025B-(
): 9/32" - 40 FEMALE THREAD
(ITEM 82).
DISASSEMBLY/ASSEMBLY
INSTRUCTIONS
Never apply excessive pressure by a holding device which
may cause distortion of a part.
Apply pressure evenly 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
(REGULAR DUTY)
Using wrenches on flats of ring gear and lock nut (41) un-
thread and remove right-angle section from tool - LEFT
HAND THREADS.
Remove chuck (66) where applicable.
To disassemble drive assembly, remove lock nut (65) from
housing - LEFT HAND THREADS.
Remove adapter (40) - LEFT HAND THREADS.
Do not disassemble further unless damage is evident. To dis-
assemble, pull pinion (47) from housing.
To remove bearing (46) from pinion, remove snap ring (44)
and spacer (45).
RIGHT-ANGLE ASSEMBLY
(REGULAR DUTY)
Lubricate bearings upon assembly.
Assemble bearing (46) and spacer (45) to pinion (47) secur-
ing with snap ring (44). NOTE: Bearing is to be located .600"
from shoulder on pinion (see illustration, next column).
Assemble bearing (42) to pinion. NOTE: Press on inner race
of bearing.
Assemble pinion and components to housing (48). NOTE:
Press on outer race of bearing.
Assemble lock nut (41) to adapter (40) and assemble adapter
to housing, securing pinion - LEFT HAND THREADS.
Apply approximately 1/8 oz. of grease to right-angle gearing
upon assembly.
Assemble drive assembly (68, 69 or 95) to lock nut (65).
Assemble lock nut and components to housing-LEFT
HAND
THREADS.
Assemble coupling (39) to pinion and assemble "0" ring (91)
to adapter (40). NOTE: "0" ring is to be free of oil and grease.
Assemble right-angle housing and components to tool, se-
curing with lock nut (41) - LEFT HAND THREADS.
RIGHT-ANGLE
DISASSEMBLY
(LIGHT DUTY)
Using wrenches on flats of ring gear and lock nut (41) un-
thread and remove right-angle section from tool - LEFT
HAND THREADS.
To disassemble right-angle section, grasp right-angle hous-
ing (56 or 78) lightly in a vise. Using a wrench on flats of body
(51) unthread body from housing - LEFT HAND THREADS.
Do not remove pinion (55) from housing unless damage is evi-
dent. To remove pinion, grasp pinion in a vise and tap housing
with a soft face hammer.
Pull pinion (55) from body (51).