Lull 6K Service Manual - Manual (Page 591)

Brakes
Service Manual — Models 644B, 6K, 844C, 8K, 1044C, 10K 9-17
Models with Mid-Inlet Hydraulics
6K-37 (S/N 318–)
6K-42 (S/N 120–)
8K-42 (S/N 221–)
10K-42 (S/N 107–)
10K-54 (S/N 104–)
644B-37 (S/N 591, 667–)
644B-42 (S/N 208–)
844C-42 (S/N 622–)
1044C-42 (S/N 117–)
1044C-54 (S/N 155–)
Fig. 9-11: Service Brake Pedal Pressure Switch – Models with Mid-Inlet
Hydraulics
The service brake pedal pressure switch is located on the right side of the
control valve in the port marked “SW“ (see Fig. 9-11). This switch is
normally open and is set to close above 250 psi.
1. Follow preparation procedures as outlined in Section 3 and in
Section 5 of this manual.
2. Tag and disconnect the wiring harness connector (Item 1) from the
connector on the brake pressure switch (Item 2).
3. Remove the brake pressure switch from the control valve (Item 3).
Discard the pressure switch.
4. Install a new brake pressure switch in the “SW” port of the control
valve. For final tightening torque the pressure switch to 205–235 in-lbs.
5. Reconnect the wiring harness connector (Item 1) to the connector on
the brake pressure switch.
A
1
V
110
2
3
2
# Description
1 Wiring Harness Connector
2 Service Brake Pressure Switch
# Description
3 Control Valve