Hale MG - Manual (Page 92)

Muscle Pumps
5-28
b. Install the transfer valve drum and
bracket assembly into the pump body.
c. Apply Loctite 242 to the four 7/16-
14UNC X 1-1/4 inch long transfer
bracket cap screws, and install and
tighten to 53 ft-lb (72 Nm).
d. Slide the adjustment stem through the
cover plate, the transfer indicator
guide, and the support and transfer
bracket.
e. Insert the stem drive gear into place in
the transfer bracket, and then slide the
adjustment stem through the stem
drive gear.
f. Insert the stem drive gear lock pin
into place, locking the stem drive
gear onto the adjustment stem.
g. Apply Loctite 242 to the transfer
indicator guide set screws and install.
Do not tighten.
h. Turn the adjustment handwheel
counter clockwise until it stops. Make
sure the transfer indic ator is at the top
of the slotted guide toward the
transfer indic ator, making certain that
the transfer indicator engages the
transfer indicator guide in the top
groove. Then, tighten the inside
setscrew in the transfer guide
indicator.
i. Rotate the adjustment handwheel
from stop to stop. The transfer
indic ator should move freely from the
top to the bottom of the slotted guide
in the cover plate.
j. Tighten the outside setscrew in the
operation indicator guide, and recheck
the movement of the transfer
indic ator.
k. Fill the pump and test the valve for
proper operation and leaks.
K. Qtwo Check Valves (two-stage
only)
(Refer to figure 6-4)
1. Drain the pump.
NOTE: there are two check valves (one on each
side) in the suction side on the front of the Qtwo
pump body. The following procedure is used for
both check valves.
2. Remove the four 1/2-13UNC X 1-1/4 inch
long cap screws from the check valve
cover on the front side of the pump body.
Note position of check valve for
reassembly.
3. Remove the check valve.
4. Clean the gasket surfaces, and inspect the
check valve pivots and pivot sockets.
5. Install the check valve.
6. Install the new gasket in the pump body.
7. Apply Loctite to the four cap screws and
secure the check valve cover to the pump
body with the cap screws, being careful to
align the check valve pivot with the pivot
socket in the check valve cover. Tighten
to 53 ft-lb (75 Nm).
8. Fill the pump and test the valve for proper
operation and leaks.