Instruction manual

Maintenance

18 3A1188A

13. Torque packing nut to: 140+/- 10 in-lb (15+/-1 N-m)

288466

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 hydraulic

motor cap until inlet and outlet align with hydraulic

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

ti8818a