Shutdown And Care - Graco ultra 750 Instruction Manual

Airless

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Instructions-parts list manual (48 pages)

Table Of Contents

Table of Contents

WARNING

To reduce the risk of serious bodily injury, including

fluid injection or splashing in the eyes or on the skin,

or injury from moving parts, always follow the Pres-

sure Relief Procedure Warning on page 14 before

checking, adjusting, cleaning and shutting down the

sprayer.

1. Check the packing nut/wet–cup daily. First follow

the Pressure Relief Procedure W arning on page

14. Be sure the wet–cup is 1/3 full of TSL at all times

to help prevent fluid buildup on the piston rod and

premature wear of packings.

2. Tighten the packing nut just enough to stop

leakage. Over tightening causes binding and exces-

sive packing wear. Use a round punch or brass rod

and light hammer to adjust the nut. Refer to Fig 13–1.

3. Clean the fluid filter often and whenever the spray-

er is stored. First follow the Pressure Relief Proce-

dure W arning on page 14. Refer to manual

307–273, supplied, for the cleaning procedure.

4. Lubricate the bearing housing

hours of operation. Remove the front cover . Fill the

bearing housing cavity with SAE 10 non–detergent

oil. Refer to Fig 13–2.

5. Flush the sprayer at the end of each work day and

fill it with mineral spirits to help prevent pump corro-

sion and freezing. Refer to

LINES on page 14.

CAUTION

To prevent pump corrosion, and to reduce the

chance of fluid freezing in the pump or pressure con-

trol in cold weather, never leave water or any type

of paint in the sprayer when it is not in use. Freezing

can seriously damage the sprayer or result in a loss

of pressure or stalling.

6. For very short shutoff periods, leave the suction

tube in the paint, follow the Pressure Relief Proce-

dure Warning on page 14, and clean the spray tip.

7. Coil the hose and hang it on the hose rack when

storing it, even for overnight, to help protect the hose

from kinking, abrasion, coupling damage, etc.

WARNING

Refer to the warning section, HOSE SAFETY, on

page 5, for information on the hazard of using dam-

aged hoses.