AW Gear Meters JVHS-XXKG User Manual

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2

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8

4a

4a

4c

4b

M8

MOUNTING

HOLE

MAINTENANCE GUIDE FOR THE JVHS-XXKG FLOW METER

Cleaning, inspecting or repairing a JVHS-KG Series gear flow meter is easily accomplished by
following the procedures below.

1. The JVHS-xxKG series meters use Xylan coated M10 Hex Flange Bolts
(1). Loosen them using a 15mm socket wrench. Keep the 2 opposing
bolts near the Locating Pins (5) engaged by a few threads to avoid
stress on the shafts and the locating pins during housing separation.

Please note the orientation of the Upper and Lower housings with
respect to each other so that the meter is reassembled the same
way.

2. Holding the Upper Housing (2), gently tap on the top of the 2 opposing
bolt heads to separate the Upper Housing (2) from the Lower Housing
(8). Do NOT use chisels or screwdrivers to split and pry apart the

housings. This can cause damage to the meter bodies and meter
internal parts.

3. After separation, remove, clean and inspect the gear assemblies (4) and
shafts (3). Clean out the o-ring groove, shaft holes and meter cavity.

IMPORTANT: The gear assembly consists of two bearings (4a), the
Gear (4b), and a Bearing Spacer (4c). These parts are loosely fitted
and can fall out. These parts are matched together and careful
attention MUST be made to their orientation and location as they
MUST be replaced the exact way they were.

4. After cleaning all parts completely, the Gear Assemblies (4), Shafts (3)
and Locating Pins (5) can be reinserted. Check for free and easy
rotation of the gears.

5. Replace the O-Ring (7). PTFE o-rings should always be replaced.
FKM o-rings can be reused if they are not damaged.

6. During reassembly keep the meter housings as parallel as possible.
Make sure the housings are orientated the same way they were prior to
disassembly.

7. Replace the Bolts (1). Torque the bolts to 24ft/lbs. NOTE: Torque

spec is for dry bolts. DO NOT lubricate bolts prior to installation.

Do not force the meter housings together. Do NOT use a hammer or
other such device. Over tightening will not cause damage to the meter,
but may fatigue the bolts and/or restrict the operation if internal surfaces
are not completely clean.

8. After reassembly, gently blow air through the meter so the gears spin.
This should be clearly audible given a moderate background noise level.

REV. 05/24/12 JVHSXX-KG.DOC

AW Gear Meters 8809 Industrial Drive, Franksville, WI 53126  web: www.awgearmeters.com

 Tel: [phone]  Fax: [phone]  Email: [e-mail]

JVHS-20KG SHOWN

CROSS REFERENCE GUIDE FOR JVHS-XXKG

AG30055

ST-30KG Shaft

AG12010 AG20040 AG30050

GR-12KG GR-20KG GR-30KG

AG12020

COT-12KG

AG12025

COV-12KG

Table Format: AG15030 AW Part #

LP-CG Locating Pin AW Part Description

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

JVHS-12KG

JVHS-20KG

JVHS-30KG

BZ07000

M10x1.5 - 50mm with Xylan

Bolts - 8
[1]

Locating Pin - 2
[5]

Shaft - 2
[3]

Gear Assembly - 2
[4]

PTFE O-Ring - 1
[7]

FKM O-Ring - 1
[7]

AG60030

LP-60CG Locating Pin

AG15045

COV-15CG

AG12015

ST-12KG Shaft

AG15040

COT-15CG

SPARE PARTS

AW Gear Meters 8809 Industrial Drive, Franksville, WI 53126  web: www.awgearmeters.com

 Tel: [phone]  Fax: [phone]  Email: [e-mail]

REV. 05/24/12 JVHSXX-KG.DOC