Liquid Controls M-MA Meters - Manual (Page 21)

torque chart
torque pattern M-7 covers
Grade 5 fasteners
Bolt Size
Foot-Pounds
NOMINAL*
Newton-Meter
NOMINAL*
#8 (.164) - 32 UNC-2A 2.54 (30.5 in/lb) 3.4
#10 (.190) - 24 UNC-2A 3.75 (45 in/lb) 5.1
1/4” (.250) - 20 UNC-2A 7.3 9.9
5/16” (.3125) - 18 UNC-2A 15.3 20.7
3/8” (.375) - 16 UNC-2A 27 37
7/16” (.4375) - 14 UNC-2A 43 58
1/2” (.500) - 13 UNC-2A 66 90
5/8” (.625) - 11 UNC-2A 132 179
3/4” (.750) - 10 UNC-2A 233 316
*Torque Tolerance is ± 10%
reasseMblInG the Meter
MA-4
M-5
MA-5
M-7
MA-7
M-10
M-15
M-25
MA-15
M-30
M-40
M-60
M-80
Dust
Cover
Screws
⁵⁄₁₆ ” hex
wrench
⁵⁄₁₆ ” hex
wrench
slotted
screwdriver
slotted
screwdriver
slotted
screwdriver
slotted
screwdriver
Drain
Plug ¼” Allen
wrench
¼” Allen
wrench
³⁄₈ ” Allen
wrench
³⁄₈ ” Allen
wrench
³⁄₈ ” Allen
wrench
³⁄₈ ” Allen
wrench
Meter
Cover
Screws ½” hex
wrench/
socket
½” hex
wrench/
socket
¼” Allen
or
½” hex
wrench/
socket
¼” Allen
or
½” hex
wrench/
socket
⁹⁄₁₆ ” hex
wrench/
socket
¾” hex
wrench/
socket
Counter
Bracket
Screws
³⁄₈ ” hex
wrench/
socket
³⁄₈ ” hex
wrench/
socket
N/A
³⁄₈ ” hex
wrench/
socket
N/A
³⁄₈ ” hex
wrench/
socket
Bearing
Plate
Screws
⁵⁄₁₆ ” hex
wrench/
socket
⁵⁄₁₆ ” hex
wrench/
socket
⁵⁄₁₆ ” hex
wrench/
socket
⁵⁄₁₆ ” hex
wrench/
socket
⁷⁄₁₆ ” hex
wrench/
socket
½” hex
wrench/
socket
Rotor
Gear
Screws
⁵⁄₁₆ ” hex
wrench/
socket
³⁄₈ ” hex
wrench/
socket
³⁄₁₆ ” Allen
wrench
³⁄₁₆ ” Allen
wrench
³⁄₁₆ ” Allen
wrench
³⁄₁₆ " Allen
wrench
Wrench and socket size chart
Please apply these techniques when repairing meters in the field.
1. Prior to installation, apply a small amount of Locquic Primer N764 to each screw.
2. Apply a light coat of Loctite 242 in three even strokes to each screw. The Loctite
and Locquic primer are not to be applied to the female connection in the rotor.
ROTOR GEAR SCREWS
21