BLACKMER 111-G01, Installation, Operation And Maintenance Instructions

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111-G00 Page 12/16
MAINTENANCE:
13. PUSHROD INSTALLATION
Figure 13 – Pushrod Installation
14. Insert the vanes into the bottom three rotor slots with the
relief grooves facing in the direction of pump rotation,
and with the rounded edges outward. See Figures 6 &
13
15. Hold the three bottom vanes in place while inserting the
three push rods (77). NOTE: a small amount of grease
can be used to help hold the pushrods in the rotor during
assembly. See Figure 13
16. After the bottom vanes and push rods are installed,
carefully insert the driven end of rotor and shaft into the
casing.
17. Install the rotor and shaft assembly (13) with the rotating
seal elements into the INBOARD Head from the sleeve
bearing end. Rotor may protrude slightly due to
mechanical seal spring force.
18. Install the new vanes by rotating the shaft until an empty
vane slot is in the 12 o’clock position, ensuring that the
rounded edge is UP, and the relief grooves are facing
towards the direction of rotation. See Figure 6.
Repeat until all vanes have been installed. This method
of vane installation ensures the push rods do not fall out
of their rotor slots.
Bearing Adjustment
19.
Install a new head O-ring (72) on the dowel of the head.
20. Carefully install the head (23) into the casing. If
equipped with optional relief valve, to insure proper
orientation see fig 4, fig 5 in
Optional Pump Relief Valve
section. Install and tighten four head cap screws (21A).
Torque per table 1.
21. If bearing adjuster was removed during seal assembly,
Screw the bearing adjuster (188) to the bearing housing
(57) until they are flush. Be sure that the setscrew (189)
is not interfering with the flush fit of the bearing adjuster
to the bearing housing.
22. Back off the bearing adjuster 1 full turn to allow for setting
of pump end clearance.
23. Secure the ball bearing (24C) to the shaft by uniformly
tightening the setscrews on the ball bearing. Bearing
MUST be tightened with allen wrench per Torque Table 1
or by using the special self indicating torque tool supplied
with the bearing.
NOTE: Pump shaft may not turn after ball bearing set
screws are tightened. If this happens, turn bearing
adjuster CLOCKWISE (viewed from driven end) until
pump shaft is able to be turned by hand.
24. Turn the bearing adjuster counterclockwise, as viewed
from the driven end of the pump, until the shaft is snug
and is no longer easily turned by hand. Mark a line
across the bearing adjuster and drive housing.
25. Turn the bearing adjuster clockwise, as viewed from the
driven end of the pump the distance prescribed per Table
2. Measurement to be taken on outside of drive housing.
Table 2
Pump size Distance on OD of Drive Housing
PV(S) 10,15 11/16” (17.46 mm)
PV(S) 20-100 3/4” (19.05 mm)
26. Tighten the bearing adjuster lock setscrew (189) and
torque per table 1.
27. Relief Valve Assembly
a. Insert the valve (9) into the relief valve body (6) with
the fluted end inward.
b. Install the relief valve spring (8) and spring guide (7)
against the valve.
c. Attach a new relief valve O-ring (10) and the valve
cover (4) on the relief valve body (6).
d. Screw the relief valve adjusting screw (1) with
locknut (3) into the valve cover (4) until it makes
contact with the spring guide (7).
e. After the relief valve has been adjusted, tighten the
locknut (3) and install the relief valve cap (1) and
O-ring (88).
NOTICE:
The relief valve setting MUST be tested and adjusted
before putting the pump into service. Refer to “Optional
Relief Valve Setting and Adjustment”.
28. Reinstall coupling, shaft key, and coupling guards.
Do not operate
without guard
in place
Operation without guards in place can
cause serious personal injury, major
property damage, or death.
29. Refer to “Pre-Start Up Check List” and “Start Up
Procedures” sections of this manual prior to restarting
pump operation.
PUSHROD
VANES