Servicing Inlet and Outlet Valves. AIRLESSCO 8-10-11 SL810,SL1100,910E,1110E, 910E

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SERVICING INLET & OUTLET VALVES

INLET VALVE (SEE FIG. 7 & 9)

1. Using the rod collar tool (189-211), screw the suction nut

(187-018), containing intake seat support (187-017), off

of the fluid body (187-313).

2. Remove the inlet seat (187-065), O-ring (106-017), inlet

ball (187-020) and ball cage (187-016) with O-ring (106-018).

3. Clean all parts and inspect them for wear or damage,

replacing parts as needed. Old "O" rings should be replaced

with new ones.

NOTE: Inlet seat (187-065) is reversible.

PISTON

FIG. 7

PACKING NUT/

WET CUP 4. Clean inside of fluid body (187-313).

5. Reassemble the valve and screw it onto the fluid body if

no further service is needed.

UPPER

PACK-

ING

PISTON, OUTLET VALVE

(SEE FIG. 7 & 9)

1. Stop piston rod in middle of it's stroke. Remove retaining

rings (189-048).

2. Slip the sleeve (189-047) off the coupling halves (189-046)

and remove both coupling halves. This will disconnect piston

rod from connecting rod and gearbox assembly.

3. Screw the suction nut (187-018) off the pump and remove

inlet valve assembly.

4. Using the rod collar tool, loosen the packing nut (CCW) and

push the piston down and out of the fluid body.

5. Place piston holder (187-248) in a vise. Slide the piston

into the holder and lock in place with a 1/4" pin (187-250).

6. Clean all parts and inspect them carefully for wear or

damage. Inspect the outside of the piston rod for scoring or

wear. Replace these parts if needed. A worn piston rod will

cause premature wear of packings.

7. Using a 3/8" allen wrench to unscrew the outlet seat support

(187-051) from the piston (187-330).

8. Remove the outlet seat (187-061), O-ring (106-021), outlet ball

(115-022) and ball cage (187-062).

9. Inspect the outlet ball and seat for wear. Replace as required.

FLUID

OUTLET

DISTANCE

TUBE

LOWER

PACKING

WIPER

PACKING

OUTLET

VALVE

NOTE: Inlet seat (187-061) is reversible.

10. Install parts back into piston rod as per Fig. 9, page 20.

Place two drops of loctite No. 242 (blue) on threads of the

outlet seat support before assembling and torque to 20 ft-lbs.

INLET

VALVE

SUCTION

NUT

FLUID

INLET

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V-PACKING REPLACEMENT

V-PACKING REPLACEMENT KIT

SEVERE DUTY- PART NO. 187-040

Contains: Leather & Plastic Packings,

Teflon & Viton O-Rings, Balls & plastic dual sided female adaptor

& Larger Male Glands.

GLAND KIT - PN 187-064

V-PACKING REPLACEMENT

INSTRUCTIONS

1. Remove the fluid pump as per the "Fluid Pump

Disconnect" instructions on page 17.

2. Unscrew and remove the inlet valve per

instructions on page 18.

3. Unscrew & remove the packing nut (187-046).

Push the piston rod down through the packings

and out of the pump. Utilizing packing removal

tool (187-249) the complete packing set can be

removed quickly and easily. Another method

is to wrap some masking tape around the

bottom of the piston. Now push the piston back

through the pump and remove through the top.

The packings and glands will be removed with

the piston rod, leaving the fluid body (187-313)

empty.

4. Disassemble and clean all parts for reassem-

bly. Discard old packings and lower glands.

Save upper glands (187-026 & 187-025) for

reuse.

5. Remove the outlet seat support, outlet seat,

outlet ball, O-ring and ball cage as previously described on page 18.

187-030

187-031

187-029

FIG. 8

187-026

187-060

187-025

187-315

187-059

187-058

187-037

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