connection of line. The maximum working pressure of
4-16. Counterbalance Valve Replacement
this valve is 3,000 psi. It has an actuating pilot pressure
Refer to figure 4-10 for removal and installation of the
of 25 percent of load pressure, and proof pressure of
counterbalance valve located on end bay superstructure
3,000 psi (TM 5-5420-205-24P, part no. 13207E2468).
model 2195-2. End bay superstructure model 2271 is
similar except for removal of cap on tee fitting, and
Figure 4-10. Counterbalance valve, removal and installation.
has a proof pressure of 4500 psi a minimum burst
Curb End Bay Pilot Operated Check Valve
pressure of 7,000 psi, and it is adjustable from 50 to
General. The curb end bay, pilot-operated,
b. Removal and Installation. For removal and
check valve is adjustable and has a maximum flow rate
installation of the check valve refer to figure 4-11.
of 10 gallons per minute. The valve is set at 600 psi; it