Unscrew wing nuts (1) and move valve bank assembly (2) out of base far enough to gain access to connections.
Disconnect the hoses from the affected section of the valve bank. Disconnect the electrical connections.
Remove the nuts (3) to release the valve bank from the mount bracket (4).
Remove the nuts (5) and washers (6) from one end of the studs (7). Work from the end nearest the affected
section (8). Slide the studs (7) far enough out of the valve bank to permit removal of the affected section.
Slide the valve section (8) out of the valve bank and loosely install the studs (7) back in the valve bank.
If the complete section is being replaced, position the new section
in place of the old one, slide studs (7) back in and install washers
(6) and nuts (5).
5-7.6.2 Disassembly. Before disassembly, prepare an oil bath of clean SAE 10 oil to receive the parts as described in
the following procedures.
Remove the tube nut (9) and slide the solenoid coil (10) off the tube (11).
Use the proper tool to avoid damaging the tube. Do not use an adjustable wrench or vise grip pliers.
Use a 1-1/4" spanner wrench to loosen the tube (11).
The spring (12) and spring retainer (13) may fall out when the tube (11) is removed.
Remove the tube (11) by hand.
Remove the spring (12) and spring retainer (13) from the valve body. Place spring and retainer in oil bath.
Slide the pin (14), plug (15) and plunger (16) out the open end of the tube (11). Place pin, plug and plunger in oil
Using a small screwdriver or punch, gently push the button (17) into the tube (11) until it is free and falls out.
Remove and discard o-ring (18) and place button in oil bath.