Midland A-22075 Series User Manual

P/N: A-22075/6, Rev. 1.1
Page 9 of 45
1.3.3 Precautions for Mounted-Valve Repair
When performing maintenance on a pressure relief valve that is mounted on a railcar, observe the
following precautions:
• Wear protective clothing and equipment suitable for withstanding the materials to which you may
be exposed
• Position yourself on the upwind side of the valve when possible
• Work in a well-ventilated area
• Work with a partner who can help you in the event of an emergency
• Follow approved safety precautions for hazardous or toxic materials
• Obtain MSDS sheets for all the commodities used with the associated valve
1.3.4 Required Tools
Before arriving at the installation site obtain the required tools and supplies prior to performing the
procedures indicated in this guide.
Recommended Wrenches
SAE
Component
Torque (ft-lb)
Item #
3/4"
1/2-13 UNC Grade 8 Top-Guide Bolt
80
11 & 12
1-1/32"
3/4" Retainer Locking Nut
120
7
1-7/16"
7/8-9 UNJ Adjustment and Locking Nut
300
10
1-1/2"
Flats on Small Valve O-ring Retainer
Table 1-2 Required Tools with Torque Specifications
Other Tools and Supplies
Screwdrivers
Lint-free Cloth
2-Ton Two-Arm Puller
Emery Paper (400 grit, cut in 1" strips)
Silicone Grease (or equivalent lubrication)
Wire Brush
Torque Wrenches (0 – 300 ft-lb)
Table 1-3 Additional Recommended Tools and Supplies

Midland A-22075 Series Specifications

General

Brand	Midland
Model	A-22075 Series
Category	Control Unit
Language	English