Reel Limit Switches - Jacobsen LF 3810 Dealer's Manual

4 ADJUSTMENTS

4.21 REEL LIMIT SWITCHES ____________________________________________________

1. Disconnect lift springs. [Section 4.13]
2. Remove cutting unit from lift arm.
3. Use a Volt/Ohm meter to determine when the switch
opens or closes.
a. Adjust magnet (A) so switch just opens with lift arm
at 20° above the horizontal.
b. Switch should close when lift arm is lowered past
20° above horizontal and stay closed for the
remainder of the lowering operation.
c. Switch should open when lift arm is raised past 20°
above horizontal and should remain open for the
remainder of the lifting operation.
d. Repeat test for each front and wing lift arm.
Note: The limit switches set the point where the reel motors
engage or disengage, not how high they will raise.
4. Reassemble cutting units and lift springs to lift arms.
22
20°
A
20°
Figure 4W