Uwatec MK 18 Assembly instructions

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

SCUBAPRO

Repair Guide

MK 18 First Stage

USE THIS GUIDE AS A REFERENCE WHEN SERVICING

THE MK 18 FIRST STAGE

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

TOOLS NEEDED FOR REPAIR OF MK 18

P/N43040000

TOOLS

NEEDED

Quantity Part Number Description

1 Socket Wrench with 3/8” drive and

3” extension

1 20-155-500

(Peter Built)

1” Yoke Nut Socket

20.270-100

(Peter Built)

Balance Chamber Tool

1 set 10.102.100

(Peter Built)

Brass o’ring picks

1 tube 41.047.000 Christo-Lube Christo-Lube

OXYGEN COMPATIBLE LUBRICANT

P/N 41-047-000

1 47.010.000 Counter Mat

1 41.496.101 Lubricant syringe Monoject

1 43.040.000 Universal Tool

1 20-115-100

(Peter Built)

First Stage Handle

2 Torque Wrench with 3/8” drive -

100 in-lb range and 600 in-lb range

1 Hex Key Set: 7/32” and 6mm

1 Crescent wrench

1 20.500.200

(Peter Built)

Pneumatic Adjusting tool

1 18.300.500

(Peter Built)

Blow Gun/Air Nozzle

ICON LEGEND

Inspect carefully, replace if needed

Monoject Lubricate properly

Replace annually

Dynamic o’ring, lubricate properly

P/N43040000

TOOLS

NEEDED

No tools needed for this step

Indicates the regulators affected by this step

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

5/32”

Remove hoses from the first stage by

using an adjustable wrench or 5/8”

open-end wrench.

Remove plugs using a 5/32” hex

wrench.

6 mm

Remove the plastic boot. Using a 6

mm hex wrench or the Universal Tool,

thread out the intermediate pressure

adjustment screw.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

Use the Universal Tool to remove the

end cap from the main regulator body.

The spring and spring pad can now be

removed.

Remove the friction washer and

diaphragm carefully.

Remove the HP module button and pin.

Remove the pin carefully to ensure it is

not lost.

Remove the spring.

Using the Universal tool and Field

Handle, loosen the swivel assembly.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

Remove the swivel assembly.

Remove the Hemispherical Chamber.

7/32”

Use the Field Handle and 7/32” hex

wrench to disassemble the swivel as

shown.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

Using the Balance Chamber Tool,

remove the balance chamber by

threading out the unit in a counter

clockwise direction. Turn the unit as

shown to prevent loss of the HP seat

and spring assembly.

Remove the spring assembly.

Remove the HP seat using the brass

picks. The HP seat will be replaced.

Use caution to prevent damaging the

regulator body.

Alternatively, use the air gun and

Balance Chamber tool to remove the

HP seat.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

Remove the Yoke Nut, Yoke and

Saddle from the regulator body.

5/32”

For DIN Regulators

Remove the Filter retainer, filter,

spring, and o’ring from the DIN Fitting

using a 5/32” hex wrench.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

6 mm

For DIN Regulators

Remove the DIN Fitting from the

regulator body.

Christo-Lube

OXYGEN COMPATIBLE LUBRICANT

P/N 41-047-000

Using a brass o’ring pick, remove the

star retainer and filter.

Clean and inspect all regulator parts.

Replace the conical filter. Inspect and

lubricate the static yoke nut o’ring.

Replace the o’ring if needed.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

Torque

Torque the yoke nut to 266 in-lbs or 30

Newton-meters.

6 mm

Christo-Lube

OXYGEN COMPATIBLE LUBRICANT

P/N41-047-000

Torque

For DIN Regulators

Replace the DIN Fitting into the

regulator body after inspection and

lubrication of the fitting-to-body o’ring.

Torque to 266 in-lbs or 30 Newton-

meters.

SCUBAPRO MK 18 First Stage

2003 SCUBAPRO

Important note: The following information is not designed to be a complete training guide for servicing the listed SCUBAPRO regulators. All SCUBAPRO

technicians are required to attend an annual service training program to insure safe handling and servicing of SCUBAPRO products. All SCUBAPRO technicians

must be employed by an authorized SCUBAPRO facility.

5/32”

Torque

For DIN Regulators

Replace the spring, filter, o’ring, and

filter retainer. Torque to 35 in-lbs or 4

Newton-meters.

No tools needed for this step

Using the balance chamber (MK 16)

tool, insert a new HP seat assembly

into the regulator body after lubricating

the HP seat o’ring properly.

Assemble the HP poppet, spring and

washers.

This manual suits for next models

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