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30897212
Maintenance
1. Always stop the pump at the bottom of its
stroke when you take a break and at the end of
the day. This helps keep fluid from drying on the
rod and damaging the packings.
2. Keep the displacement pump packing nut/wet
cup 1/3 full of TSL at all times. The TSL helps
protect the packings and rod.
3. Check the tightness of the packing nut daily. It
should be tight enough to stop leakage but no
tighter.
C
A
UTION
Proper engine and hydraulic oil level is important to
prevent costly damage to the sprayer. Check it a s
often as recommended in Steps 4 and 5., below.
4. Check the hydraulic oil level weekly. The oil
must be up to the top mark on the dipstick. Use
only Graco Hydraulic Oil.
5. Check the engine oil level at least weekly. The
oil must be up to the FULL mark on the dipstick.
The engine should not use more than one ounce
of oil per hour of operation. Consult the engine
manual, supplied, for additional recommended
maintenance.
6. Inspect the return line filter frequently for clog-
ging. Replace it after every 500 hours of operation
or every 6 months, whichever comes first. A
clogged or worn out filter reduces filter capability
and will damage the hydraulic pump.
7. Change the hydraulic oil after every 2000
hours of operation or every 12 months, whichever
comes first. For continuous operation in tempera-
ture s above 85_F(30_C), change the oil after
every 1000 hours or 6 months of use. See Step 9.
for the procedure.
C
A
UTION
Cleanliness is essential when servicing the hydraulic
system. Use special care to avoid getting dust or dirt
into the hydraulic system to prevent damage to the
hydraulic components.
8. Change engine oil and filter every 100 hour of
use. Use 30W detergent oil.
9. To change the hydraulic oil:
a. Follow the Pressure Relief Procedure
Warning on page 10.
b. Place a waste container under the drain plug
of the hydraulic reservoir. See Fig 7. Unscrew
the plug and drain the reservoir. Reinstall the
plug before proceeding.
c. Remove the nuts and reservoir cover.
d. Remove the return line filter and install a new
filter assembly.
e. Inspect the inlet filter and replace it if needed.
f. Install the reservoir cover and nuts. Then pour
in five gallons (19 liters) of Graco Hydraulic Oil
through the intake filter. See Fig 7. Install the
fill cap.
Fig 7
NUTS
COVER
INLET
FILTER
HYDRAULIC
OIL FILL
CAP
ENGINE
OIL
FILL PLUG
HYDRAULIC OIL
DRAIN
PLUG LOCATED
UNDER RESERVOIR
RE-
TURN
LINE
FILTER