Hydraulic Pump Replacement
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.
drain plug
ti7784
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.)
196 | 79 |
197 |
|
140
ti7805b
4.Unscrew suction line connections to hydraulic pump. Place a container under hoses to catch any dripping oil.
ti7790
ti7801
16 | 311283D |
