AW Gear Meters JV-KG Series User Manual
AW Gear Meters Equipment
AW Gear Meters 8809 Industrial Drive, Franksville, WI web:
www.awgearmeters.com
Tel: 262-884-9800 Fax: 262-884-9810 Email: [email protected]
REV. 05/24/12 JVXX-KG W-DH.DOC
MAINTENANCE GUIDE FOR THE JV-XXKG SERIES FLOW METER
Cleaning, inspecting or repairing a JV-KG Series gear flow meter is easily accomplished by following the
procedures below.
1. Remove the Sensor (1) from the flow meter body Upper Housing (4). Using a
3mm hex key, loosen the 2 mounting screws inside the sensor.
2. For the JV-30 size and smaller use M6 Bolts (2), loosen them using a 5mm hex
key. The JV-60 uses M10 Bolts (2), loosen them using an 8mm hex key. Keep
the 2 opposing bolts near the Locating Pins (7) 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.
3. Holding the Upper Housing (4), gently tap on the top of the 2 opposing bolt
heads to separate the Upper Housing (4) from the Lower Housing (9). 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.
4. After separation, remove, clean and inspect the gear assemblies (6) and shafts
(5). Clean out the o-ring groove, shaft holes and meter cavity.
IMPORTANT: The gear assembly consists of two bearings (6a), the Gear
(6b), and a Bearing Spacer (6c. 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.
5. After cleaning all parts completely, the Gear Assemblies (6), Shafts (5) and
Locating Pins (7) can be reinserted. Check for free and easy rotation of the
gears.
6. Replace the O-Ring (8). PTFE o-rings should always be replaced. FKM o-rings
can be reused if they are not damaged.
Note: JVx-60KG flow meters use 2 o-rings per meter.
7. During reassembly keep the meter housings as parallel as possible. Make sure
the housings are orientated the same way they were prior to disassembly.
8. Replace the Washers (3) and the Bolts (2). Torque the bolts to 15Nm for
the12, 20 and 30 size meters and 30Nm for the 60 size meters. 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.
9. After reassembly, gently blow air through the meter so the gears spin. This
should be clearly audible given a moderate background noise level.
10. Clean any debris from the pickup holes before remounting the sensor (1) to the
Upper Housing (4). Use a 3mm hex key to tighten the mounting screws in the
sensor to mount the sensor on the housing. Note that there is a correct and
incorrect orientation for the sensor to be mounted on the flow meter.
Please see the AW Gear Meters website for documentation if you do not have
it. The orientation is noted by the sensor’s connector with respect to the outlet
port of the flow meter.
ENGLISH
. XXXX +/- .0005
.XXX +/- .001
.XX +/- .005
FRAC. +/- 1/64
ANG. +/- 1/2 DEG
SURFACE FINISH: 64 MAX
TOLERANCES UNLESS NOTED
THIS PRINT, INCLUDING THE INFORMATION
CONTAINED IN IT IS THE PROPERTY OF AW COMPANY.
IT IS CONSIDERED PROPRIETARY IN NATURE AND
MAY NOT BE USED OR DISCLOSED OUTSIDE OF
AW COMPANY, EXCEPT UNDER PRIOR WRITEN
AGREEMENT. ANY MODIFICATIONS MADE TO OR
COMMENTS WRITTEN ON THIS DRAWING
BY UNAUTHORIZED PERSONNEL WILL VOID
THIS DRAWING. ALL DIMENSIONS SHOWN
ARE SUBJECT TO CHANGE WITOUT NOTICE.
AW COMPANY USE ONLY
TITLE: --
PART NUMBER: --
DRAWING NUMBER: JV-20KG + DH-B Exploded
DRAWN BY: --
REV:
DATE: 1/10/2006
CHECKED BY: --
PAGE: 1 OF 1
SCALE: 1:2
AW COMPANY
8809 INDUSTRIAL DR.
FRANKSVILLE, WI 53126
TEL. # (262) 884-9800
FAX. # (262) 884-9810
PURCHASED PART
NOTES:
MATERIAL: --
1.
BREAK EDGES MAX .005"
2.
ALL PARTS MUST BE CLEAN AND FREE OF PARTICLES.
3.
REV.
DESCRIPTION
DATE
BY
1
2
3
4
5
6a
6a
6c
7
8
9
6b
6
JV-20KG w/ DH-B Shown