Accuspray VMX Gebruikershandleiding - Pagina 10

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Fan Air Knob

To remove the fan air knob, and to lubricate the fan

air stem threads, use a 3/64" hex key. Unscrew and

remove the fan air adjustment screws, and lift off the

fan air adjustment knob. Using your gun wrench,

unscrew and remove the fan air fitting from the gun

body. The fitting will lift out from the gun body as a

subassembly. See Figure 1. The subassembly may

be replaced, or you may proceed with further

disassembly. See Figure 2.

Caution

It is not recommended that the fan air fitting be

removed frequently. The component contains a

Teflon O-ring, and does not require regular

lubrication. Lubricate only when a new component is

installed.

The subassembly may now be disassembled by

removing the E-clip from the fan air stem, with a

small

flat-blade

screwdriver.

removed, back out the fan air stem from the fan air

fitting. The O-ring may now be removed and

replaced,

and

the

reassembled, and placed back into the gun .

Valve Rebuild

With regular cleaning and lubrication, complete

disassembly of your gun should seldom be required.

Good lubrication practices should be in place to

ensure this.

Valve rebuild is a two step procedure. Step one

involves the removal and replacement of the valve

spring. You would do this if you were experiencing a

sluggish trigger return. To remove the valve spring,

unscrew and remove the valve cap. See Figure 3.

At this stage, you can also remove and replace the

O-ring for the valve cap. For complete valve rebuild

instructions, continue reading.

Step two involves completely removing the valve

from the gun body. Before you can proceed, the

needle shaft and the trigger must be removed. We

will also assume that the valve cap, the valve spring,

and the O-ring have already been removed. See

Figures 3 through 6.

Grasp the valve stem and pull it forward. Note that

the removal of the valve stem cap is not required.

Removal and replacement of the valve stem cap will

be covered later in this section. The valve stem will

pull out from the valve seat, and out of the gun

through the seal housing.

800-618-6860 or 440-498-9677 Fax: 440-498-9815

- 10 -

V M X

Owners Manual

Maintenance

With

the

e-clip

subassembly

can

The valve seat can be removed from the gun by

gently reinserting the valve stem into the seal

housing to "unseat" the valve seat. The valve seat

will drop out of the valve cavity. See Figure 5.

Seal Housing Replacement

Using your gun wrench, unscrew and remove the

seal housing. The seal housing subassembly

contains an internal snap ring. This is the only area

that a special tool is required. The snap ring requires

a size 100 tool. With the snap ring removed, lift out

the spacer, the lip seal, and clean the seal housing

cavity.

Before reassembling the seal housing, note the

orientation of the lip seal. The open end of the lip

seal is to be placed into the seal housing. Pack the

seal housing with petroleum jelly. The lip seal will be

properly installed when you feel a positive lock, and

it is resting level. Reinstall the spacer and the snap

ring. See Figure 6.

Valve Stem and Valve Seat Replacement

Drop a new valve seat into the valve cavity (open

end down) See Figure 7. Gently press down on the

valve seat to align it in the cavity. A long thin object

such as a pen works well for this. See Figure 8.

Reinstall the O-ring, valve spring, and valve cap.

See Figure 9.

Gently push the valve stem back into the valve seat

through the seal housing. See Figure 10. You will

know that the installation is correct and complete

when the spring return action is smooth. As a final

seating procedure, depress the valve stem as far

back as it will go, then release it. Lubricate the valve

stem.

Valve Stem Cap Replacement

To remove the valve stem cap, remove the valve

stem from the gun. Place the valve stem in a vice

equipped with soft jaws. With pliers, pull off the valve

stem cap.

To replace the valve stem cap, leave the valve stem

in the vice. Hold the valve stem cap with needle

nose pliers, and lightly tap it down with a wooden or

rubber mallet. The valve stem cap will seat onto the

shoulder of the valve stem. Always replace the valve

stem cap with a new one.

The trigger and remaining components may now be

reassembled, and your gun is ready to be placed

back into service.