Hitachi SERIES D, 220-856 manual Maintenance

Maintenance

WARNING

INJECTION HAZARD

To reduce the risk of serious bodily injury, follow the Pressure Relief Proce- dure Warning on page 11 before check-

ing or repairing any part of the spray system.

Cleaning a Clogged Tip

WARNING

To reduce the risk of serious bodily injury from from fluid injection:

NEVER operate the spray gun with the tip guard removed.

DO NOT hold your hand, body, or a rag in front of the spray tip when cleaning or checking for a clog. Always point the gun toward the ground or into a pail.

DO NOT try to ªblow backº paint; this is NOT an air spray sprayer.

1.Clean the front of the tip frequently. Follow the Pressure Relief Procedure, page 11, first.

2.Follow the cleaning instructions given in your separate gun or spray tip instruction manual.

Shutdown and Care

5.For very short shutoff periods, leave the suction tube in the paint, relieve pressure, and clean the spray tip.

6.Flush the sprayer at the end of each work day and fill it with mineral spirits to help prevent pump corrosion and freezing. See page 9.

CAUTION

To prevent pump corrosion, and to reduce the chance of fluid freezing in the pump or pressure control 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.

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.

A

1. Keep the packing nut/wet-cup (221) 1/3 full of

TSL (Throat Seal Liquid, supplied) at all times to

help prevent fluid buildup on the piston rod and

premature wear of packings. Follow the Pressure

Relief Procedure, page 11, before adding TSL.

Fig. 4

7460A

2.	Keep the packing nut/wet-cup just tight
	enough to stop leakage. See Fig. 5. Overtighten-
	ing causes binding and excessive packing wear.
	Follow the Pressure Relief Procedure, page 11.
	Then use a round punch or brass rod and light
	hammer to adjust the nut.
3.	Clean the fluid filter (15) often, and whenever
	the sprayer is stored. Follow the Pressure Relief
	Procedure, page 11, before cleaning the filter.
4.	Lubricate the bearing housing (A) after every
	100 hours of operation. Follow the Pressure
	Relief Procedure, page 11. Remove the front
	cover. Fill the bearing housing cavity with SAE 10

non-detergent oil. See Fig. 4.

8￿ 3￿7￿83￿

15

221

01748C

Fig. 5