Ashcroft 2462 - Receiver Gauges - Manual (Page 2)

TYPE 1279 & 1379 SOLID FRONT
DURAGAUGE PRESSURE GAUGE
LIQUID FILL CONVERSION
INSTRUCTIONS
Garter Spring & Diaphragm Assembly
(Back Connection Gauge Only)
A. Place cone tool over socket shank as shown.
B. Moisten lip of socket and outer O-ring surface
with silicone oil or grease.
C. Place diaphragm with rib side facing upward over
cone into case grove.
Diaphragm O-ring must be completely in socket-
shank grove.
D. Place garter spring over cone as shown and slide
onto diaphragm in socket grove
E. Assemble rear cover with screws per step 7.
Front Ring Assembly (All Gauges)
A. Assemble ring to case by hand to start.
B. Place ring on wrench as shown
C. Use
1 ⁄
2
˝ drive extension and torque ring to 200 in. lb
Alternate Method
A. Tighten ring snugly by hand
B. Mark case and ring.
C. Turn ring another 100 to 120 degrees (slightly
less than 1 ⁄
2
turn) using the ring wrench and 1 ⁄
2
˝
drive socket wrench or place the blunt end of a
wooden or plastic dowel against a ring lug and
tap with a hammer.
INSTRUCTIONS FOR USING CONE
TOOL AND RING WRENCH
Fig. 3
GARTER SPRING
DIAPHRAGM
REAR COVER
CASE
BACK CONNECTION ASSEMBLED GAUGE
Fig. 2
Fig. 3
Fig. 5
Fig. 4
A. Insert a length of 1 ⁄
8
˝ diameter tubing through
the 12 o’clock position hole in the rear, solid
front portion of the case, as shown.
B. Evacuate the air from the front dial cavity while
pouring in the fill fluid through the case back.
The vacuum will displace the air with fluid.*
C. When the dial cavity is solidly filled, remove the
tubing and continue to pour the fill fluid to with-
in
1 ⁄
16
˝ below the o-ring channel lip, as shown.
D. When converting a 45-1379 with the top fill hole
configuration, p/n 256A176-01 fill plug is
required and must be ordered separately.
*To prevent breakage, reduce vacuum to 15 in.
Hg for plain glass and safety glass.
VACUUM
TRAP
Ø 1 ⁄
8
TUBING
DIAL
VACUUM
PUMP
INSTRUCTIONS FOR LIQUID FILLING
ASHCROFT
® TYPE 1279 AND 1379
SOLID FRONT DURAGAUGE ®
PRESSURE GAUGES USING A
VACUUM PUMP
© 2007 Ashcroft Inc., 250 East Main Street, Stratford, CT 06614 USA, Tel: 203-378-8281, Fax 203-385-0402 www.ashcroft.com
All sales subject to standard terms and conditions of sale. All rights reserved. I&M008-10090 (84B276) Rev 5/05 P5/07