BLACKMER 111-F01, Installation, Operation And Maintenance Instructions

111-F00     Page 11/16 

MAINTENANCE:  

PUSHROD INSTALLATION 

Figure 11 – Pushrod Installation 

6.  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 & 
11. 

7.  Hold the three bottom vanes in place while inserting the 

three push rods (77).  See Figure 11.  Note: A small 
amount of grease may be used to help hold the pushrod 
in the rotor during assembly. 

8.  Installing Seal Rotating Elements 

Refer to the seal manufacturer’s instructions for detailed 
removal and replacement instructions. 

Mechanical Seal type 9

a.  Apply a small amount of Flowserve Pac-Ease™ or 

equivalent water based lubricant on the shaft between 
the shaft end and the rotor 

b.  Slide the seal rotating assembly (153B) over the shaft 

with the rotating face away from the rotor until contact 
is made with the large diameter of the shaft.  Seal 
spacer is not needed. 

c.  Tighten set screws and remove seal spacer clips per 

manufacturer’s directions. 

d.  After the bottom vanes and push rods are installed, 

carefully insert the driven end of rotor and shaft into 
the cylinder. 

e.  Clean the polished face of the seal with a clean tissue 

and alcohol before reassembly. 

Mechanical Seal Type 16 

a.  After the bottom vanes and push rods are installed, 

carefully insert the driven end of rotor and shaft into 
the cylinder. 

b.  Apply a small amount of Flowserve Pac-Ease™ or 

equivalent water based lubricant on the shaft between 
the shaft end and the rotor. 

c.  Install the seal spacer (82) over the shaft until it 

bottoms out on the large diameter of the shaft. 

d.  Slide the seal rotating assembly (153B) over the shaft 

with the rotating face away from the rotor until contact 
is made with the seal spacer. 

e.  Clean the polished face of the seal with a clean tissue 

and alcohol before reassembly. 

9.  Install the remaining 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. 

10.  Install Stationary Seal Elements 

Mechanical Seal type 9, 16

a.  Apply a small amount of lubricant in the seal access of 

the bearing adjuster (188). 

b.  Install a new stationary seat and O-ring into the 

bearing adjuster until fully bottomed out.   
Type 9 only - align slot in stationary seat with anti-
rotation pin (25A) in bearing adjuster (188) before 
inserting stationary seat. 

c.  Clean the polished face with a clean tissue and 

alcohol. 

11.  Install a new O-ring (51) onto the bearing adjuster (188) 

12.  Lubricate the O-ring seal area on the bearing housing 

(57) with a light coating of oil.   

13.  Start the bearing adjuster (188) (with stationary seal 

elements installed) over the shaft, being careful not to  
damage the seal with the shaft end. 

14.  Screw the bearing adjuster (188) to the bearing housing 

(57) until they are flush.  Be sure that the 2 setscrews 
(189) are not interfering with the flush fit of the bearing 
adjuster to the bearing housing. 

PUSHROD 

VANES