Ingersoll-Rand FA2.5A Series, Инструкция по эксплуатации, техническому обслуживанию и ремонту

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MHD56114 - Edition 4 27
CAUTION
• There are a total of eight capscrews securing the brake cover
to the brake housing. Two of these capscrews (24) hold the
brake assembly together, but do not attach to the outboard
upright. One capscrew attaching the brake assembly is located
directly beneath the brake air line fitting connection; the other
is located 180 degrees from the air fitting. The heads of these
two capscrews sit deeper into the counterbores of the brake
cover. Do not remove these two capscrews until the brake has
been separated as an assembly from the winch and the
directions in the ‘Disc Brake Disassembly’ section have been
reviewed.
10. Disconnect and remove brake hose (75). Remove six
capscrews (1) attaching disc brake assembly to outboard
upright (26). Remove disc brake assembly by tapping around
housing with a soft hammer or mallet while pulling out and
away from upright in a horizontal direction. Remove dowel
pin (20) and store until re-installation. To further disassemble
the disc brake assembly, refer to Dwg. MHP0630 on page 44
and the ‘Disc Brake Disassembly’ section.
11. On standard winch: using a hoist to support the drum,
remove side rails (64) and (65), one at a time, by removing
four capscrews (66) attaching each side rail to uprights (26)
and (68).
12. On Open Frame (Face) winch: To assist reassembly,
record the number and location of washers (584) installed
between the side rails (571) and (573) and bars (570). Using
a hoist to support the drum, remove rear side rail (64) by
removing four capscrews (66) attaching side rail to uprights
(26) and (68). Remove front bars (570) and side rails (571)
and (573) as an assembly by removing four capscrews (574)
and washers (585). To separate bars from side rails, remove
capscrews (572). Refer to Dwg. MHP1324 on page 60.
13. Remove the inboard (motor end) upright (68) by pulling
straight away from drum (62) in a horizontal direction.
Remove oil seal (29) and bearing (30) from upright. Discard
oil seal. Discard bearing if inspection indicates replacement.
14. If equipped, remove the drum band brake assembly (104) or
(146) by sliding over the end of the drum (62) flange. To
further disassemble the drum brake, refer to the appropriate
‘Manual Drum Band Brake Disassembly’ or ‘Automatic
Drum Band Brake Disassembly’ section.
15. Remove the outboard (disc brake end) upright (26) by
pulling straight away from drum (62) in a horizontal
direction. Remove oil seal (29) and bearing (30) from
upright. Discard oil seal. Discard bearing if inspection
indicates replacement.
CAUTION
• Ensure the reduction gear oil is drained before disassembly
and that the drain and fill plugs are removed. When using
jacking bolts, ensure the cover lifts evenly by turning bolt one
full turn and then repeating on the other bolt. If cover jams,
remove jacking bolts and gently tap around the cover to reseat
it before starting over. Careful prying of the cover along its
diameter during jacking, using a soft material wedge, to guide
the cover is acceptable. Care must be taken not to scar, gouge
or damage the machined finishes on the cover and the reducer
housing mating surfaces during parts separation.
16. Stand drum on end with reduction gear on top. Remove
reduction gear assembly from drum (62) by removing six
capscrews (32) attaching end cover (33) to drum. Screw two
7/16 - 20 UNF x 1-1/2 inch capscrews into the threaded
holes in cover (33). Turn both screws evenly until cover is
separated from housing. Remove cover.
17. Screw two 1/2 - 13 UNC x 1-1/2 inch capscrews into the
threaded holes in the reducer housing (59). Turn both screws
evenly until housing is separated from drum. Attach suitable
lifting eyes to the capscrews and remove housing from drum.
18. Disassembly of reduction gear is not recommended. If
disassembly is necessary, refer to ‘Reduction Gear
Disassembly’ section.
K5C2-X Control Valve Disassembly
Refer to Dwg. MHP2427 on page 48.
Handle Removal
If handle is not damaged it is not necessary to disassemble
completely.
1.
Carefully pry off plug (935).
2. Remove capscrew (901) and tab lock washer (909).
NOTICE
• Observe spring (937) connection during disassembly. This
spring is under tension and is required to return handle to
neutral position.
3. Carefully pull handle assembly (930) from reverse valve
(943). Remove spring (937).
Reverse Valve Removal
1. Remove capscrews (938), (925) and washers (924) from seal
bracket (939). Remove seal bracket from housing. Remove
and discard ‘O’ rings (941) and (942).
2. Remove capscrews (901) and washers (902) from exhaust
flange (955). Remove flange from housing. Remove and
discard ‘O’ ring (942).
3. Move reverse valve (943) out exhaust flange side of housing
until ball (916) is visible on reverse valve. Allow ball (916)
to drop out of bushing (944) and remove ball (916).
4. Remove bushing (944) out exhaust flange side of housing.
NOTICE
• Dowel pin (945) allows the bushing to be removed only from
the exhaust flange side of housing. Ball (916) retains reverse
valve (943) in bushing (944).
• Do not remove reverse valve (943), bushing (944) and ball
(916) at the same time, damage may occur to bushing.
• Take care to not allow ball (916) to drop in motor. If this
occurs it may be necessary to disassemble motor to retrieve
ball (916).
Piston Removal
1. Remove capscrews (901) and washers (902) from piston
cover (919). Remove cover and discard gasket (918).
2. Remove capscrews (901) and washers (902) from poppet
cover (903). Remove cover and discard gasket (904).