Cascade 20E Manual de instrucciones de instalación - Página 9

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I
NSTALLATION
11
Adjust relief cartridges
For over-pressure protection, the relief valve
cartridges for both the CLAMP and SIDE-
SHIFT functions should be adjusted to
match the truck hydraulic flow rate.
Clamp relief adjustment:
A
B
C
D
CL0623.ill
Decrease
Pressure (CCW)
5/16-in. (8 mm)
Allen Wrench
NON-SIDESHIFTING VALVE
212115 Rev. 0
Confirm that the truck pressure is
between 2300–2600 psi (160–180 bar)
at the carriage hose terminal.
Install a 3000-psi (200 bar) pressure
gauge on the main valve TEST port (No.
4 O-ring fitting required).
Cycle arms to full open. Slowly close
arms while clamping a maximum rigid
load (or clamp force indicator). Hold
lever in the CLAMP position and acceler-
ate engine to develop full pressure.
Adjust the CLAMP relief cartridge for an
indicated 2300 psi (160 bar). Turn
clockwise to increase pressure, counter-
clockwise to decrease pressure. Tighten
jam nut and replace cap.
Relief Valve
Cartridge
Increase
Pressure
(CW)
Adjustment
Screw
Cap
Sideshift relief adjustment:
E
With a maximum load clamped, sideshift full left
and full right while checking for an arm speed of
8–10 in./sec.
F
Adjust the SIDESHIFT relief cartridge counter-
clockwise (CCW) 1/4-turn. Repeat Steps E and F
until sideshift speed slows (relief opening).
G
Readjust cartridge clockwise (CW) 1/4-turn.
Tighten jam nut and replace cap.
C
3/4-in. (19 mm)
Jam Nut
CL0622.ill
F
Sideshift Relief Cartridge
SIDESHIFTING VALVE
WARNING: Before removing hydraulic lines
or components, relieve pressure in the
hydraulic system. Turn the truck off and
open the truck auxiliary control valves
several times in both directions.
B
E
D
Clamp Relief Cartridge
SIDESHIFTING VALVE
WITH REGENERATION
C
CL0435.ill
Front
7