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Jacobsen HR5111 - Parking Brake; Service Brake; Cruise Control Switch

Jacobsen HR5111
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PARKING BRAKE (See Figure 2C-4)
The adjusting knob at the end of brake lever is used
to compensate for brake lining and linkage wear, or to
adjust to unusual holding demands.
1. Place brake lever in the disengaged position and
turn knob in a clockwise direction, apply and re-
lease brake lever every quarter turn until a defi-
nite “snap over center” action is achieved.
2. Over adjustment causes “hard” lever action, but
does not increase brake efficiency. Turn knob
counterclockwise until a smooth but firm action is
obtained.
SERVICE BRAKE (See Figure 2C-5)
The service brake pedal should have a minimum of
1/8 (3.17 mm) free play before the plunger contacts
piston in the master cylinder.
Adjust brake pedal rod as shown in Figure 2C-5.
CRUISE CONTROL SWITCH
(See Figure 2C-6)
If the cruise control will not disengage when the pedal
is pushed, proceed as follows:
1. Loosen nuts (1) and position switch so roller (2) is
centered on bolt (3). Tighten nuts (1).
2. Loosen nuts (4) and extend or retract bolt (3) to
activate switch. Tighten nuts (4).
CONTROLS
SECTION 2C. CONTROL ADJUSTMENTS
2C-5
2C
Figure 2C-6. Cruise Control Switch
Figure 2C-5. Service Brake

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