Cascade 20E Manual de instrucciones de instalación - Página 9

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NSTALLATION

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:

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 test port of the main valve.

(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 the

lever in the CLAMP position and acceler-

ate the 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. Tighten jam nut

and replace cap.

CL0623.ill

Decrease

Pressure (CCW)

5/16-in. (8 mm)

Allen Wrench

NON-SIDESHIFTING VALVE

Relief Valve

Cartridge

Increase

Pressure

(CW)

3/4-in. (19 mm)

Jam Nut

Adjustment

Screw

Cap

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.

Sideshift relief adjustment:

With a maximum load clamped, sideshift full left

and full right while checking for an arm speed of

8–10 in./sec.

Using an Allen wrench, adjust the SIDESHIFT

relief cartridge counterclockwise (CCW) 1/4-turn.

Repeat Steps E and F until sideshift speed slows

(relief opening).

Readjust cartridge clockwise (CW) 1/4-turn.

Tighten jam nut and replace cap.

Clamp Relief Cartridge

CL0622.ill

CL0435.ill

FRONT

SIDESHIFTING VALVE

WITH REGENERATION