Ingersoll-Rand force5 FA5A-LAK1, Parts, Operation And Maintenance Manual

27

a.

Lubricate ‘O’ ring on poppet valve (423).

b.

Lubricate ‘O’ ring (427) and place it on poppet seat
(428). Place this assembly on poppet valve (423).

c.

Lubricate ‘O’ ring (426) and place it on poppet valve
(423).

d.

Put valve piston (431) on poppet valve and secure with
retainer ring (432).

e.

Place ‘O’ ring (430) in groove in valve piston and
lubricate.

8.

Slide poppet assembly onto shaft (401) and insert cotter pin
(414) in end of shaft to hold components. Do not bend
cotter pin ends at this time.

NOTICE

• Pendant Pilot Valves do not use cotter pin (414). For these
units, use a suitable cotter pin to temporarily contain
components on the shaft. The pin will be removed in a
following step.

9.

Lubricate ‘O’ ring (404), place on restrictor seat (403) and
insert assembly from the bottom of valve body and into
position. Refer to Dwg. MHP1023. Press restrictor seat into
groove in valve body until seated.

10. Install shaft (401) assembly in valve body (410) from side

with installed restrictor seat (403). Carefully install to
prevent sleeve (408) or pins (405) from damaging seat as
they pass through.

11. Align poppet seat with valve body and, using fingers, press

poppet seat into valve body.

(Dwg. MHP1023)

12. Secure in place using retainer ring (429). Remove cotter pin

installed in step 8.

NOTICE

• The flats on shaft (401) must be facing the left (or valve)
side of the valve body (410).

13. On opposite side of valve body, slide exhaust poppet (420)

onto shaft (401). Press into valve body.

14. Install spring (422).
15. Slide poppet assembly (423) onto shaft (401).

NOTICE

• Pendant Pilot Valves do not use cotter pin (414). For these
units, use a suitable cotter pin to temporarily contain
components on the shaft. The pin will be removed in a
following step.

16. Align poppet seat with valve body and, using fingers, press

poppet seat into valve body.

17. Secure in place using retainer ring (429).

NOTICE

• Install pin (406) in step 18 only enough to determine
clearance requirements of step 19. Do not fully install pin
until directed.

18. On lever operated control valves install pin (406) in shaft

(401) on the handle end of valve. This is the side of the
valve that the restrictor poppet (402) and restrictor seat
(403) are located. On pendant operated control valves pin
(406) will be installed on both ends of shaft (401).

19. Measure clearance between end of poppet assembly (423)

and pin (406). Using shims (444) attain a clearance of 0.03
- 0.05 inch (0.8 - 1.3 mm) between poppet assembly and
pin.

20. When clearance is established, press pin down until pin

protrudes below shaft 0.380 (+/- 0.01) inch (9.7 [+/- 0.3]
mm).

Brake Release Valve Installation and Adjustment
Refer to Dwgs. MHP0653 (Pendant Pilot Operated Valve) or
MHP0654 (Lever Operated Valve) and MHP1227.

NOTICE

• Valve assembly (413) shaft body is longer on one side of
middle groove than the other. Correct placement of valve
assembly is with the longer shaft section located towards the
bottom of the valve body (410). The shorter section will
protrude up, through the valve body.
• To adjust brake release valve ensure sleeve (408) is loose on
shaft (401). If not loose, back off (turn counterclockwise)
setscrew (407).

1.

Rotate sleeve (408) to place the longer edge on top. Refer
to Dwg. MHP1024.

2.

Using gentle hand pressure to prevent damage to the valve
assembly (413) shaft body, press valve assembly down until
ball is in firm contact with sleeve (408).

CAUTION

• When using sealants care must be taken to use only enough
to effectively do the job. Excess sealant can drip onto internal
components and harden resulting in erratic winch operation
or control problems.