Hydraulic Pump Replacement
16 311283J
Hydraulic Pump Replacement
Changing Hydraulic Oil
Draining Oil
a. Place drain pan under oil tank and drain plug.
b. Unscrew reservoir (64) drain plug and drain oil
from reservoir.
Refilling Oil
a. Replace drain plug.
b. Fill tank with Graco Hydraulic Oil, ISO 46. Tank
holds approximately 4 gallons.
Removal
1. Relieve pressure, page 5. Allow hydraulic system
to cool before beginning the service procedure.
2. Drain oil, Changing Hydraulic Oil procedure,
page 16.
3. Remove screw (197) and pump handle cover (196).
Remove four cover bolts (79) and cover (140). (It is
not necessary to remove the hydraulic lines before
removing cover. The cover is designed to provide
ample room for the cover to fit over the hose.)
4. Unscrew suction line connections to hydraulic
pump. Place a container under hoses to catch any
dripping oil.
drain
plug
ti7784
79
140
ti7805b
197
196
ti7790
ti7801
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