Hydraulic Motor Rebuild - Graco LineLazer IV 200HS Repair And Parts Manual

Hydraulic Motor Rebuild

Removal
1. Relieve pressure, page 7.
2. Place drip pan or rags under sprayer to catch
hydraulic oil that leaks out during repair.
3. Remove pump, page 24.
4. F . 7. Remove hydraulic lines (35, 250) from fit-
IG
tings (217) at top left and right side of hydraulic
motor.
5. Loosen jam nut (183).
6. Unscrew and remove hydraulic motor cap (25).
7. Slide piston rod/hydraulic motor cap assembly (A)
from hydraulic motor cylinder (69).
FLYING PARTS HAZARD
Detent spring has high energy potential. If detent
spring is released without due care detent spring and
balls could fly into the eyes of the disassembler.
Wear safety glasses when removing or installing
detent spring and balls. Failure to wear safety
glasses when removing detent spring could result in
eye injury or blindness.
312226P
Installation
FLYING PARTS HAZARD
1. Slide piston rod assembly (A) into hydraulic motor
cylinder (69).
2. Screw down hydraulic motor cap (25) until cap bot-
toms out. Unscrew hydraulic motor cap until inlet
and outlet align with hydraulic line fittings and test
hole in hydraulic motor cap points away from belt
guard (24).
3. Torque jam nut (183) against hydraulic motor cap
(25) to 150 ft-lb (17 N•m).
4. Install hydraulic lines (35, 250) to fittings (217) to top
left and right side of hydraulic motor per procedure
on page 6; torque to 40 ft-lb (54.2 N•m).
5. Install pump, page 24.
6. Start engine and operate pump for 30 seconds.
Turn engine OFF. Check hydraulic oil level and fill
with Graco hydraulic oil, page 7.
Hydraulic Motor Rebuild
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