Invacare 6LXO2 Service Manual page 36

PROCEDURE 2
PROCEDURE 2 - PREVENTIVE MAINTENANCE (continued)
P
R
Connecting Rod/Eccentric Assembly
E
9. With gloved-hand or clean cloth, pre-form piston cup if
V
necessary.
M
10. Gently slide cylinder sleeve up and over cup to fully
A
form it.
I
N
T
DO NOT lubricate or use oil on any moving parts.
E
The compressor eccentric uses a precision
N
sealed bearing.
A
N
DO NOT crimp the piston cup when you replace the
C
sleeve. If the cup is crimped, it MUST be replaced.
E
11. With bearing side (FIGURE 18) of connecting rod/ec-
centric assembly facing the center (motor) of the com-
pressor, slide the assembly onto the shaft bringing it
flush to the motor bearing.
5/6
NOTE: Make sure the eccentric setscrew is positioned
L
over the flat of the shaft.
T
12. Tighten setscrew to 100 inch-lbs.
R
13. Hold the sleeve down by the housing with one (1) hand
C
and slowly rotate the eccentric with the other hand to
O
ensure all the components are lined-up properly.
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P
R
E
B
U
I
L
D
NOTE: As the piston travels up and down it will
also rock from side-to-side. This is a feature of
the WOB-L Piston.
FIGURE 18 - CONNECTING ROD/ECCENTRIC
WARNING
CAUTION
Cylinder Sleeve
Retainer
Piston Cup
Rod Top
ASSEMBLY
PREVENTIVE MAINTENANCE
Fan
14. Reinstall the fan onto the shaft in original orien-
tation.
Valve Plate
15. With the sleeve located and firmly seated on the
housing, replace the valve plate in the same
manner as it was (FIGURE 18).
NOTE: Make sure the top edge of the sleeve locates
in the O-ring groove in the bottom of the valve plate.
CAUTION
Make sure that the O-ring is NOT twisted when
seated in the groove of the bottom of the valve plate.
Compressor Heads
16. Place the heads on top of the valve plates.
17. Tighten the head screws in a criss-cross pattern
to 40 inch-lbs.
Compressor
WARNING
To avoid personal injury or property damage,
rotate the fan by hand prior to connecting the
unit to a power source. Check for suction at the
air inlet by placing your finger over the port as
you rotate the fan. You should feel a slight suc-
tion with each rotation of the fan. If you don't
feel a suction but you feel or hear a thump as
you turn the fan, DO NOT connect the unit to a
power source. Review the assembly procedure
for possible error.
18. Reinstall compressor (Refer to PROCEDURE 7 -
REPLACING COMPRESSOR ASSEMBLY OR
CAPACITOR).
19. Run unit and check for leaks around compres-
sor hoses and compressor tubes (Refer to PRO-
CEDURE 19 - LEAK TEST).
20. Take pressure readings to ensure proper system pres-
sures (Refer to PROCEDURE 21 - SIEVE BED
PRESSURE TAP-IN KIT INSTALLATION AND BED
PRESSURE CHECK in the IRC3LX/IRC5LX/
IRC5LXO2 SERVICE MANUAL).
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