JLG ERT2669, Руководство по обслуживанию и ремонту

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SECTION 4 - BASIC HYDRAULIC INFORMATION & SCHEMATICS
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2. Steer Relief Valve
a. Instrumentation/Setup:
1. Install a pressure gauge, 3000 PSI or higher, at the
M1 port on the main control valve located in the
hydraulic compartment on the right-hand side of
the machine (see Figure 4-27.).
NOTE: The port will not be directly visible as it is located on
the side of the main control valve facing the back
wall of the hydraulic compartment.
b. Pressure Setting Check
A. Steer Right Relief
1. Start the machine on and running, use the
platform control box to command “Steer Right”
until the wheels have turned as far as they can
(cylinder bottoms out)
2. Note the pressure on the gauge connected to
port “M1” while continuing to command steer
right
3. Adjustment is required if the pressure gauge
reads 50 PSI above or below 2494PSI (172Bar).
Follow the steps from :
Section A, Steer Right Relief
B. Steer Left Relief
1. Start the machine on and running, use the
platform control box to command “Steer Left”
until the wheels have turned as far as they can
(cylinder bottoms out)
2. Note the pressure on the gauge connected to
port “M1” while continuing to command steer
right
3. Adjustment is required if the pressure gauge
reads 50 PSI above or below 1914 PSI
(132Bar).Follow the steps from :
Section B., Steer Left Relief
Figure 4-27. Location Of Port “M1” (Main Valve)