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9.
Lubricate the o-rings and backup washers. Insert the shear
seal assemblies into body (item 23) by hand.
10. Tighten body onto cap with 2 screws (item 24) with a 5/32"
hex wrench, hand tight.
11. Place 4 o-rings (item 25) onto body.
12. Mount upper valve assy onto manifold or locking valve block
using 4 socket head cap screws (item 7, fi gure 1A & 1B).
Torque to 28-34 ft-lbs [38-46 Nm].
13. Insert spring (item 6, fi gure 1D) into hole in valve cap (item 9).
Install ball (item 5) onto the spring.
14. All models except VM33M & VM43M: Place disk (item 4) with
sharp edged side facing upwards onto the shaft and resting
on ball. Place handle (item 3) onto shaft.
15. Models VM33M & VM43M Only: Place handle cap (item
66), lever (item 67) and knob (item 68) onto shaft as an
assembly.
16. Insert washer (item 2) onto shaft. Apply Loctite 222 to threads
on screw (item 1) and hand tighten.
Procedure for Locking Valve Blocks only
1.
Seat a new ball (item 35, fi gures 2 & 3) onto seat (item 39)
with press (195 psi with 10-ton ram or 380 psi with 5-ton
ram). Make two assemblies for a 4-way block or only one for
a 3-way block. Set these parts aside.
2.
Place o-ring (item 36) and washer (item 37) onto each seat
(item 39) and lubricate with grease. Set these parts aside.
3.
Place gasket (item 32) and o-ring (item 33) onto each plug
(item 31). Set these parts aside.
4.
Lubricate bore in valve block (item 43) with oil.
5.
On 3-way blocks only: Place the uncoined seat assembly
(items 36, 37 & 39 - without ball) into one end of bore. Use
special tool AT100479. Do not install ball (item 35) or spring
(item 34) on this end. Refer to fi gure 2.
6.
On 4-way blocks only: Place the fi rst seat assembly (items
36, 37 & 39) into either end of bore with ball (item 35) facing
up. Use special tool AT100479. Refer to fi gure 3.
7.
On 4-way blocks only: Dip a spring (item 34, fi gure 4) in
grease and place into plug (item 31).
8.
Thread plug assembly (items 31-33 and item 34, if used) into
bore opening on same end as seat was installed. Torque to
85-95 ft-lbs [115-129 Nm].
9.
Turn over valve block (item 43, fi gures 2 & 3) so that opposite
end of bore is facing up. Lubricate bore with oil.
10. Assemble piston (item 42) with o-ring (item 41) and 2 backup
washers (item 40). Place piston assembly (items 40-42) into
bore. Use special tool AT100479-1.
11. Place the second seat assembly (items 36, 37 & 39) into bore
with ball (item 35) facing up. Use special tool AT100479.
12. Dip spring (item 34) in grease and place into plug (item 31).
13. Thread plug assembly (items 31-33) with spring (item 34)
into bore opening. Torque to 85-95 ft-lbs [115-129 Nm].
14. Place o-rings (item 26, fi gure 1B) onto manifold (item 27).
Special Tools
AT100479
Use for installing seats,
item 39, into the bore.
(see fi gures 2 & 3)
Med. Knurl
AT100479-1
Use for installing piston
assembly, items 40-42,
into the bore.
(see fi gures 2 & 3)
Ø.628/.630 Polish
Ø.655/.654 Polish
Ø.746/.747 Polish
Ø.795/.793 Polish
Figure 9, Special Tools
Relief Valve Adjustment
The valve assembly is equipped with a user-adjustable relief
valve. Adjust pressure as follows:
VM33, VM33M, VM43 and VM43M Only
1.
Install a 0-15,000 psi [0-1,035 bar] gauge in the "A" port (see
Figure 10).
2.
VM43 and VM43M Only: Place a 3/8" pipe plug in the "B"
port and torque to 25 ft-lbs [33 Nm].
3.
Loosen the relief valve locknut to permit adjustment of set
screw.
9
Ø1.25
1/64X45 Chamf
Ø.752/.753 Polish
Ø.795/.793 Polish
Ø1.25
Med. Knurl
1/64X45 Chamf.
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