AW Gear Meters JVS-20SLGFS User Manual

MAINTENANCE GUIDE FOR THE JVS-10SLGFS, JVS-15SLGFS & JVS-20SLGFS

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* Cleaning, inspecting and/or replacing parts can be done by following the procedure below.*

Read the entire procedure before taking apart the meter. Be careful when handling parts!

1) Remove the 4 corner hex bolts (1) and remove the

flow meter from the manifold.

2) Remove the remaining 4 hex bolts (2) with a 5mm

hex key.
a. Reinsert 2 of the bolts you just removed, the 2 on

opposite ends work best, so that they are only
holding by a few threads. While holding the
upper housing firmly, tap the 2 bolts to separate
the upper and lower housings (3 & 4). Do not pry
or twist the housings to separate them, as this may
damage internal parts of the meter.

3) Once the housings are separated:
a. Remove the gears (4) and shafts (6). Lift the

4) To reassemble the meter:

gears straight up off of the shafts to avoid
damaging the shafts.

b. Remove the o-ring (7).
c. Clean the gears, shafts, meter bodies, o-ring

groove and shaft holes using solvent and a small
brush.

d. Inspect the gears and shafts. The gears should

spin freely on the shafts.

a. Replace the old o-ring if it is PTFE and replace it

with a new one.

b. Reinsert the shafts into the shaft holes and reinsert

the gears as well. Make sure the gears are
spinning freely.

c. Keep the meter housings as parallel as possible

during reassembly. Line up the index marks
which are located on either end of the upper and
lower housings.

d. Replace the 4 hex bolts (2) that were removed last

and tighten them to approximately 15Nm (this is
hand tight). Do not force the housings together as
you could damage the meter. Tighten the bolts a
few turns at a time, switching to another to gently
secure the housing together. Over tightening will
not damage the meter but the bolts can break if
tightened too much.

5) After reassembly make sure the gears spin freely

by gently blowing air into the inlet. You should
be able to hear the gears spin given a moderate
background noise level.

6) Reinsert the 4 corner hex bolts (1) and tighten to

approximately 15Nm (this is hand tight).

AW Gear Meters Franksville, WI  web: www.awflowmeters.com  Tel: [phone]  Fax: [phone]  Email: [e-mail]

REV. 05/24/12 JVS-10, 15 & 20SLGFS.DOC

CROSS REFERENCE GUIDE FOR JVS-10SLGFS, JVS-15SLGFS & JVS-20SLGFS SERIES SPARE PARTS

Part - Qty. per meter
[Drawing Ref. #]

JVS-10SLGFS JVS-15SLGFS JVS-20SLGFS

Upper Housing - 1
[3]

Lower Housing - 1
[8]

Gears - 2
[4]

AG10010

GR-10CG Gear

AG15010

GR-15CG Gear

AG20010

GR-20CG Gear

Shafts - 2
[6]

AG15055

ST-20SLGFS Shaft

PTFE O-Ring - 1
[7]

AG15035

COT-10SLG

Locating Pins - 2
[5]

Hex Bolts - 4
[2]

AG15060

M6 x 1.0 x 30mm

Hex Bolts - 4
[1]

SR50019

M6 x 1 x 45mm

Washers - 4
[9]

Lock Washers - 4
[10]

Nuts - 4
[11]

Table Format:

AG15010

GR-15CG Gear

AW Part #

AW Part Descritption

SR90260

M6 stainless Steel Split Lock Washer

SR90295

M6 Stainless Steel Nut

Not Field Replaceable

Not Field Replaceable

AG15050

COT-15-SLGS Teflon O-Ring

AG15030

LP-CG Locating Pin

AG15070

M6 x 1.0 x 25mm

SR50017

M6 x 1 x 40mm

SR90290

M6 Stainless Steel Flat Washer

AG15052

ST-15SLGFS Shaft

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AW Gear Meters Franksville, WI  web: www.awflowmeters.com  Tel: [phone]  Fax: [phone]  Email: [e-mail]

REV. 05/24/12 JVS-10, 15 & 20SLGFS.DOC