Land Pride RCP2660 - Manual (Page 39)

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Section 6: Hydraulic Plumbing
1/11/13 RCP2660, RCPM2660, RCP3060 and RCPM3060 Parallel Arm Rotary Cutter 316-111M
Table of Contents
Breakaway Cylinder
Refer to Figure 6-2:
!
CAUTION
The breakaway cylinder is designed to bypass hydraulic fluid
under high pressure when cutter head or parallel arms strike
an object during forward movement. Do not use a standard
hydraulic cylinder for the breakaway cylinder or damage
could occur to the unit.
The breakaway cylinder is used to prevent structural
damage to the cutter head and parallel arms. If cutter
head strikes an object during forward movement, the
breakaway cylinder extends - allowing the parallel arms
and cutter deck to freely pivot 90 degrees to the rear.
The breakaway cylinder should be installed as shown in
Figure 6-2. Make sure the rod end of the cylinder is
mounted to the pivot lug as shown. Connect both hoses
from cylinder to a remote duplex outlet on the tractor.
Pressure Shut Down Valve Operation
Refer to Figure 6-2:
Standard pressure shut down valves inherently leaks a
small amount of oil allowing the deck to drift back during
field operation. When needed, reset cutter deck forward
using tractor control levers.
Optional pressure shut down valves are available that will
greatly reduces the frequency of deck drift but they will
require continuous force against the deck to move it
back. Deck does not pivot back as freely as it does
when using standard pressure shut down valves.
See Land Pride’s Parts Manual No. 316-111P for
ordering either the standard or optional pressure shut
down valves. Order only genuine Land Parts from your
local Land Pride Dealer.
IMPORTANT: A 1/2" bolt is installed for shipping
purposes only. This bolt must be remove before
connecting the hydraulic hoses to the tractor.
Section 6: Hydraulic Plumbing
Remote Cylinder Plumbing For Tractor Control
Figure 6-1
27974
Breakaway Cylinder Installation
Figure 6-2
Tractor Control
Refer to Figure 6-1:
“ARM 1”, “ARM 2”, and “Deck Pivot” cylinders are
connected directly to the tractor's remote duplex outlets
as shown and are controlled by the tractor operator. See
“Tractor Control” on page 19 for assembly and
set-up instructions. See Figure 6-6 on page 39 for
hydraulic plumbing of the deck motor.
24633
Important: Locate and Remove
1/2" Shipping Bolt Before
Connecting Hydraulic Hoses.