Table of Contents
Advertisement
11. Screw the piston assembly onto the connecting
rod (3) and adjust the ball travel as instructed
in Check Valve Adjustment.
locknut (4).
12. Check the o-ring (13) in the pump base and
replace it, if necessary.
13. Lubricate the piston packings and the inner
wall at the top of the rise tube (2). Wrap the
packings with a guide collar made of 1/64"
maximum thickness shim stock or metal
sheeting. Using a turning motion, work the first
leather packing into the riser tube. Remove
the guide collar and push the riser tube up and
screw it into the base. Torque the tube to 100-
150 ft-lb (135-204 N•m).
14. Slide bearing (5) onto priming rod (8) with the
step side facing the bottom of the pump.
CHECK VALVE ADJUSTMENT
This pump has an adjustable piston ball check.
To change the piston ball travel, loosen the locknut
(4).
Turn
the
piston
counterclockwise to increase, and clockwise to
decrease. Medium viscosity fluid should have a
3/16" (5 mm) ball travel. See Figure 4. Decrease
the ball travel minimizes surging at stroke
changeover, but too short a ball travel restricts the
flow and slows down the pump.
12
Tighten the
valve
housing
(14)
15. Insert foot valve packings (30) into poppet
check (6) (replace if necessary).
16. Slide poppet check containing foot valve
packings onto priming rod (8) with beveled
edge facing the bottom of the pump.
17. Slide foot valve over poppet check and screw
bearing (5) into the foot valve (7).
18. Push foot valve up to the riser tube.
19. Inspect o-ring (11) for damage and replace if
necessary.
20. Screw foot valve (7) onto riser tube (2).
21. Slide priming plate (9) (beveled edge up) onto
priming rod (8). Screw nut (10) onto priming
rod and tighten.
22.
Reconnect the pump's ground wire to a true
earth ground.
3/16" Piston
Ball Travel
Figure 4
4
14
Advertisement
Table of Contents
