313776 15
Hydraulic Motor Yoke
Removal
1. Relieve pressure; page 7.
2. Place drip pan or rags under sprayer to catch
hydraulic oil that leaks out during repair.
3. Fig. 5. Slide retainer clip (194) down to remove.
Remove pump pin (249).
4. Remove hydraulic lines (35, 250) from fittings
(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 .
Installation
1. Slide piston rod assembly (A) into hydraulic motor
cylinder.
2. Screw down hydraulic motor cap (25) until cap
bottoms out. Unscrew hydraulic motor cap until
inlet and outlet align with hydraulic line fittings and
test hole in hydraulic motor cap points toward 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 proce-
dure on page 6; torque to 40 ft-lb (54.2 N·m).
5. Pull start rope slowly to align pin holes of hydraulic
motor and displacement pump (21). Connect with
pump pin (249); and retainer clip (194), page 18.
6. Start engine and operate pump for 30 seconds.
T urn engine OFF. Check hydraulic oil level and fill
with Graco hydraulic oil, page 7.
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