Hydraulic Pump Replacement
334194A
17
Hydraulic Pump Replacement
Changing Hydraulic Oil
Draining Oil
a.
Place drain pan under oil reservoir 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. Res-
ervoir holds approximately 4 gallons (15.14
liters).
Removal
1.
Perform
Pressure Relief Procedure
, page 10.
2.
Drain oil,
Changing Hydraulic Oil
procedure,
page 17.
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.
NOTICE
To prevent damage to the hydraulic pump,
only use hydraulic fluid.
Allow hydraulic system to cool before beginning the
service procedure to prevent injury.
drain
plug
ti20935a
79
140
ti7805b
197
196
