Disassembly
and
Reassembly
The following are suggcstcd sequences for
a full disassem- 8. Install head, or heads and manifold.
blt nnd rclssembly ofthe
compressor.
CAUTION: When
servking comprcsso^, nake
sure o parls
arc rei stalled i their ongintl loca-
L lnstall
crankshaft seal and seal
plate/mounting
flnnge.
10. Install
d;ve
coupling.
tions.
Carelu
y 'turk
similar componenE, and
pa\)
speciot arcntio, to
Jasknet
tensth ," .""","
in",
FASTENER ToRQUE PRoCEDURE
L Removc 'nanitbtd
(tou.cylinder
compressob onty).
comPrcs\or
oil
j
usr prior
1o assenrblv'
:1.
Remove hcnd. or bcnds irorn
compressorbody.
3lnstnll:rllbolts('rndw$hen)andpre'tight€nlo70'tof
'
lh{ ruLommcndfd torque. foll"wrng
J
(n\\-cro\i
prl-
5.
Rcmovc
discharge
vrlvc plares
froln cylinden.
tem.
6. Remove sealplate/mounting
flrnge andcrankshaft scal-
.1.
Use
a hand
torquc w€nch ond lhe sanN criss-cross
pal,
are rcinsta ed concctq.
DISASSEMBLY
SEQUENCE
L Remove
drive coupling.
2. Dnin residualoil.
Use the following
procedure
when specific steps arc not
provided.
L Caretully remove any remaining
gasket
mrterial rnd
clcan boih gasket surfaces
thoroughly.
2. Alwxys use r new
gaskel
and cort the
g$ket
with
clean
t€m to bring all bolts to final torque. Hold bolts On
Torque for a few seconds.
CLEANING COMPONENTS
CAUTION: Do not bead blast compressor compo-
nenb cleon. The abrasive nedia can bccone
enbedded in castinss,Irce i^eu duins cotnpftssol
operution, and da,naqe the
compnssoL Onlr use
chemhal solvents
that
leare
no oil| rcsAue, such as
naphtho" lacquer thinner or bruke cleaner to ckan
conprcssor components. cfocus
cloth
mal
be used
to remorc rust or
oiidation
frcn
extenul conpres-
DRIVE COUPLING
Removal
There
are
several
different types of drive couplings and
clutches used on the foul cylinder compressors in unic
7. Renole
oil sunrp and oil
pickup
screen.
L R(m,'\
(.onnc(ling
rod\.
p'\lon'
rnd slr.\cr.
9. Renole oil pump.
lO. Remo!ecr:rnkshrfr.
ll. Remole €hcck vnh'es.
REASSEMBLY
SEOUENCE
L lnstnll check v,rlvcs.
2. Insrrll
crankshaft.
3. Install oil punp.
,1.
Install connecting rods.
pislons
and sleeves.
5.
Install oil pickup
screen.
6. Iflstall oil
sump.
7. Insmll discharge valve plates.
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