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TION. SEAL FACES MUST BE CLEANED WITH THE ALCOHOL WIPES PROVIDED WITH
THE REPAIR KIT.
OIL AND GREASE (INCLUDING SKIN OILS) WILL DAMAGE THE MECHANICAL SEAL
FACE. NEVER TOUCH THE MATING FACES OF THE MECHANICAL SEAL. WEAR PRO-
TECTIVE GLOVES TO PREVENT TOUCHING THE SEAL FACES WITH YOUR BARE HANDS.
(USE RUBBER, ACRYLIC, LATEX, ETC. – DO NOT USE CLOTH OR LEATHER.)
USE ONLY PAC-EASE RUBBER LUBRICANT EMULSION (OR EQUIVALENT) ON THE
RUBBER MECHANICAL SEAL PARTS TO EASE INSTALLATION. USING ANY OTHER LUB-
RICANT CAN DAMAGE THE SEAL AND SEAT.
A. If indicated by inspection, install a new oil seal on gearbox side of pump
head. (See paragraph 5.8.4.13.1.)
B. Install stationary portion of mechanical seal (seat) in pump head.
NOTE
Oil and grease will damage the mechanical seal face. Do NOT touch the face of the
mechanical seal.
Using alcohol swabs, clean bore of pump head. 1.
Without touching seat face, slide seat over pump shaft and align to bore 2.
of pump head.
NOTE
Use the top of the mechanical seal installation tool as a push tube to seat the sta-
tionary portion of mechanical seal in the bore of the pump head. Use PAC-EASE to lu-
bricate the sides of the seat for easier installation.
Carefully push seat into bore of pump head until firmly seated. 3.
C. Install diaphragm.
Using alcohol swabs, clean pump shaft. 1.
Apply a generous coating of PAC-EASE rubber lubricant emulsion (or 2.
equivalent) to diaphragm.
Without touching mating face of seal ring, push diaphragm onto pump 3.
shaft.
Using mechanical seal installation tool, push on diaphragm until sealing 4.
faces are in full contact (seated against each other).
NOTES
If binding occurs, apply additional PAC-EASE lubricant and slide the spring and dia-
phragm onto the pump shaft. The seal ring must mate completely and evenly with the
stationary seat for the sealing faces to function properly.
If required a small non-marring hammer may be used to tap on the mechanical seal
installation tool to fully and evenly seat the diaphragm on the pump shaft.
D. Install spring.
Keep shaft, diaphragm, and spring well lubricated with PAC-EASE. 1.
Place spring on pump shaft. 2.
Push spring onto diaphragm. 3.
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