Land Pride RCR1272 Manuale Utente

Section 5: Maintenance & Lubrication

RCR1248, RCR1260 and RCR1272 Rotary Cutter 326-047M

12/15/15

Clutch Disassembly

If the clutch run-in procedure, (See “Clutch Run-In” on
page 21), indicated that one or more of the friction disks did
not slip, the clutch must be disassembled to separate the
friction discs.

Refer to Figure 5-2:
See IMPORTANT NOTE above before disassembling
clutch. After measuring and recording each spring length,
remove spring retainer nuts (#1), springs (#2), and bolts
(#3). Each friction disc (#4) must then be separated from
the metal surface adjacent to it.

Inspection

Inspect all parts for excessive wear and condition. Clean
all parts that do not require replacement.The original
friction disk thickness is 1/8" and should be replaced if
the thickness falls below 3/32". If the clutch have been
slipped to the point of “smoking”, the friction disks may be
damaged and should be replaced. Heat build-up may
also affect the yoke joints.

Clutch Assembly

Refer to Figure 5-2:
Reassemble each friction disk (#4) next to the metal plate
it was separated from. Make certain all bushing are
replaced in the same location as when removed. Install
bolts (#3) through end plates and intermediate plates as
shown. Place springs (#2) over the bolts and secure with
nuts (#1).

Refer to Figure 5-3:
Progressively tighten each spring retainer bolt until
correct spring height (“A” dimension) is reached.

Clutch Disassembly

Figure 5-2

IMPORTANT: Refer to Figure 5-3. Be Sure to
measure and record length (“A”) of each clutch
spring before disassembling clutch.

30557

Clutch Adjustment

Figure 5-3

Cutter Blade Maintenance

DANGER

Always disconnect driveline from tractor PTO shaft before
servicing underside of cutter. If tractor is started with PTO
engaged, the cutter can cause bodily injury or death.

DANGER

Always secure cutter deck in the up position with solid
supports before servicing underside of cutter. Never work
under equipment supported by hydraulics. Hydraulics can
drop equipment if controls are actuated or if hydraulic lines
burst. Either situation can drop the cutter instantly even when
power to the hydraulics is shut off.

WARNING

Keep blade bolt access hole covered at all times except when
servicing cutter blades. Make sure driveline is disconnected
from the tractor before servicing cutter blades.

WARNING

Do not operate cutter with blades that are out-of-balance,
bent, excessively worn, excessively nicked, or with blade bolts
that are excessively worn. Such blades can break loose from
the cutter at high speeds causing serious injury or death.

WARNING

Do not attempt to straighten a bent blade or weld on a blade.
Do not attempt to modify a blade such as hard surfacing, heat
treating, cold treating, or by any other method. Always
replace blades with a new Land Pride blade to assure safety.

Always inspect cutting blades before each use. Make
certain they are properly installed and are in good
working condition. Replace any blade that is damaged,
worn, bent, or excessively nicked. Never try to straighten
a bent blade! Small nicks can be ground out when
sharpening.

30559

A = Measured length of each spring
before disassembling slip clutch.

Use 1 3/32" for “A” dimension if
measurements were not taken.

IMPORTANT: Replace cutting blades in pairs with
genuine Land Pride blades only. Replacing single
blades can result in an out-of-balance condition that
will contribute to premature bearing wear/breakage
and/or structural cracks in gearbox and/or deck.