Elkhart Brass 2900G Series - Manual (Page 7)

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6. Apply Loctite #242 to the four hex head bolts then reinstall and tighten them to secure
the gear case assembly to the mounting flange on the valve body.
.
7. Install the gear segment in the correct position as shown in Figure 2 above. Note that
rotating the worm slightly will ease gear segment installation.
8. Apply petroleum base grease to the thrust washer and install.
9. Reassemble the gear case cover on the gear case taking care not to damage the cover
O-ring.
10. Apply Loctite #242 to the four socket head cap screws and reinstall and tighten them
to secure the gear case cover.
B. Handwheel Assembly:
The handwheel assembly (81031001) is installed in the pump control panel. The layout
drawing on page 8 shows the details for the cutouts that need to be made in the pump
panel. Check for clearance behind control panel to allow for universal joints and
connecting rod to valve. The pressure gage for each discharge valve should be installed
above the handwheel controlling that valve.
The universal joints are attached to the valve worm shaft and handwheel assembly
(81031001) to couple the rotating shafts that are not collinear. A neoprene rubber boot
retains a lubricant around the bearing surface of the universal joint and prevents
contaminants from entering. The maximum operating angle should be no greater than
40°.
Cut out a 1.031” diameter hole in predetermined location in the panel as shown in layout
drawing. Remove the universal joint and the large hex nut from the assembly and then
install the handwheel assembly through front of the control panel. Install the large hex
nut on the back side of the panel; do not fully tighten the nut yet. Install the universal
joint on the handwheel assembly with the roll pin provided.
C. Determining Shaft Length:
Measure the distance from the universal joint on the valve to the universal joint on the
handwheel assembly (see Figure 4). Add 5/8” to each end of the connecting rod for
engagement inside universal joints. Cut the connecting rod to length and insert rod ends
into universal joints. Using the universal joints as drill jigs; drill a 3/16” diameter hole
through each end of the rod. Drive one of the 3/16” diameter roll pins provided into each
of the universal joints to attach the shaft at both ends. Finally, tighten the hex nut on the
handwheel assembly.