3 Installation
Study the instructions carefully and pay special attention to the warnings!
LKH-5 to LKH-60 are supplied without impeller screw as standard but this can be supplied.
Check the direction of rotation of the impeller before operation.
- See the indication label on the pump.
3.3
Pre-use check - pump without/with impeller screw
Step 1
Pump without impeller screw
Always remove the impeller before checking the direction of
rotation.
Never start the pump if the impeller is fitted and the pump casing
is removed.
1. Remove cap nuts (28), washers (29) and pump casing (45).
2. Remove impeller (39) (see also instruction in section 5.4
Assembly of pump/shaft seal).
TD 252-010
Step 2
1. Start and stop the motor momentarily.
2. Ensure that the direction of rotation of the stub shaft (9) is
anti-clockwise as viewed from the inlet side.
See the indication label!
Correct!
TD 252-011
Stub shaft
Step 3
Fit and tighten impeller (39).
TD 252-012
Step 4
1. Fit pump casing (45).
2. Fit washers (29) and cap nuts (28) and tighten.
Note: Cap nuts must be tightened according to torque values in
6 Technical data
TD 252-013
Step 1
Pump with impeller screw
Never start in the wrong direction of rotation with liquid in the
pump.
1. Start and stop the motor momentarily.
2. Ensure that the direction of rotation of the motor fan is
clockwise as viewed from the rear end of the motor.
See the indication label!
Correct
TD 252-014
View from rear end of
motor
9
