AIRLESSCO HSS9000 - Manual (Page 18)

Maintenance
18 3A1188C
13. Torque packing nut to: 140+/- 10 in-lb (15+/-1 N-m)
NOTE: When pump packings begin to leak, tighten
packing nut down until leakage stops or lessens. This
allows approximately 100 gallons of additional operation
before repacking is required.
Hydraulic Motor Rebuild
Removal
1. Relieve Pressure, page 6.
2. Place drip pan or rags under sprayer to catch
hydraulic oil that leaks out during repair.
3. Flush the material you are spraying out of the
machine.
4. Remove the front cover.
5. Remove the suction tube and paint hose (remove at
swivel end).
6. Push retaining ring up; push out pin.
7. Remove hydraulic lines from fittings at top left and
right side of hydraulic motor.
8. Loosen jam nut.
9. Unscrew and remove hydraulic motor cap.
10. Slide piston rod/hydraulic motor cap assembly (A)
from hydraulic motor cylinder.
Installation
1. Slide piston rod assembly into hydraulic motor cylin-
der.
2. Screw down hydraulic motor cap. Unscrew hydrau-
lic motor cap until inlet and outlet align with hydrau-
lic line fittings and test hole in hydraulic motor cap
points toward belt guard.
3. Torque jam nut against hydraulic motor cap to
140ft-lb (17 N.m).
4. Install hydraulic lines to fittings to top left and right
side of hydraulic motor; torque to 40 ft-lb (54.2 N.m).
5. Slowly pull engine starter rope until pump rod pin
hole is aligned with hydraulic rod hole. Push pin into
hole. Push retaining spring into groove.
6. Start engine and operate pump for 30 seconds.
Turn engine OFF. Check hydraulic oil level and fill
with Airlessco hydraulic oil.
ti8846a
17
A
6
9
ti8818a