MCi Crusader II 1989 Maintenance Manual page 215

Date
1-1-89-
Page 6-16
MC-9 MAINTENANCE MANUAL
MAINTENANCE
It 1s recommended that the blower belt tension air cylinder be
lubricated at regular intervals. approximately every 30.000
m11es 148.000 km)
The recommended procedure is as follows:
Remove air teed hose from cylinder and apply a few drops of
SAE
30
or
40
engine oil into cylinder hose connector. Recon-
nect the hose. then reverse the air supply to the cylinder: this
will lubricate the other end of the cylinder. Check cylinder for air
leaks.
When overhauling cylinder.
rt
1s very important to replace all
seals. felts. cups and O-rings with new parts for proper
operation.
NOTE: When overhauling cylinder new
parts should be coated with oil· before
assembly.
REMOVAL
1
Shut off the air supply to the cylinder by turning the two-
way control valve handle (figure 6-22). This will compress the
cy1,nder spring and release the tension on the blower dnve belt
2
Remove the blower drive belt.
3 Remove the capscrew and lock nut that connects the air
cy11nder rod end to the cross shaft assembly.
NOTE: When removing the capscrew from
the rod end, it may be necessary to adjust
the two-way control valve in order to relieve
the pressure on the capscrew.
18
1. Retaining Ring
2. Seal
3. End Bushing
4. O-Ring
5. Packing
6.
Shaft
7. O-Ring
8. Piston
9. Lock Washer
10. Nut
11. Felt
12. Spring
13. Body
14. O-Ring
15. End Plate
16. Retaining Ring
17.
Unibal End -
18. Jam Nut
19. Stud
4. Close the shut-off cock on the shutterstat air filter. This
will prevent excessive loss of air when the cylinder is removed.
5. Disconnect the two hoses from the air cylinder.
6.
Remove the capscrew and nut from the far end of the
cylinder and remove the cylinder from the coach.
WARNING: Do not attempt to disassemble
the air cylinder while it is in the coach.
DISASSEMBLY
1.
Remove the. two rods ends and studs from the cylinder.
See figure 6-23.
Figure 6-22. Blower Belt Air Cylinder.
Figure 6-23. Blower Belt Air Cylinder Parts Diagram.