Ampco Pumps Company LF 401, Instruction & Maintenance Manual

Page: 17 / 36

17
PUMP DISMANTALING & SEAL REMOVAL
ATTENTION! BEFORE ATTEMPTING ANY SEVICE ON ANY PUMP OR MOTOR,
DISCONNECT OR LOCKOUT ELECTRICAL POWER TO THE PUMP MOTOR. IF
THE PUMP AND MOTOR ARE TO BE REMOVED AS A UNIT, NOTE THE WIRING
AND CONFIGURATION. USE COLORED OR NUMBERED TAPE TO MARK THE
WIRE CONNECTIONS OF THE PUMP MOTOR AND POWER SOURCE, FOR RE-
CONNECTION.
TOOLS REQUIRED TO DISMANTLE PUMP AND REMOVE SEAL:
Socket wrench for the impeller nut Torque wrench
3/8” round bar 90º o-ring pick
Dead blow hammer (soft face) 7/16” wrench
1. Disconnect electrical power to the pump motor and follow any lockout / tag-
out procedures in place at your facility.
2. Disconnect pump from the suction piping. Drain all fluids from the pump.
3. Loosen and remove
cover wing nuts, cover,
cover gasket and shaft
guard. See figure 1.
4. Insert a 3/8” bar in the
hole in the stub shaft. See
figure 2. Turn the impeller
nut with a socket wrench
counterclockwise to re-
move the impeller nut.
Figure
1
Figure
2
LF & LM SERIES PUMPS