Slip Clutch Maintenance; Type B Slip Clutch; Clutch Run-In; Clutch Disassembly, Inspection & Assembly - Land Pride Powered Rakes PR1672 Operator's Manual

Section 4: Maintenance & Lubrication

Slip Clutch Maintenance

!
CAUTION
Slip clutches that have been in use or have been slipped for
only two or three seconds during run-in may be too hot to
touch. Allow a hot clutch to cool before working on it.
The Powered Rake drive components are protected from
shock loads by a friction slip clutch. The clutch must be
capable of slippage during operation to protect the
gearbox, driveline and other drive train parts. Friction
clutches should be "run-in" prior to initial operation and
after long periods of inactivity to remove any oxidation
that may have accumulated on the friction surfaces.
Repeat "run-in" instructions at the beginning of each
season and when moisture and/or condensation seizes
the inner friction plates.
The Powered Rake will have one of two slip clutches.
Refer to Figure 4-3 to determine which slip clutch your
Powered Rake has (Type A or B). Follow run-in and
assembly instructions for your particular slip clutch.
Type A
Slip Clutch with Hex Socket Bolts
Figure 4-3

Type B Slip Clutch

Follow clutch run-in and assembly instructions below if
your clutch is the Type B shown in Figure 4-3.

Clutch Run-In

Refer to Figure 4-3:
1. Loosen counterclockwise all 8 hex socket bolts
uniformly 6 full turns.
2. Cycle clutch on and off 5 or 6 times (15 seconds on
and 15 seconds off) with the engine operating at half
throttle.
3. Tighten clockwise all 8 hex socket bolts fully back.
Clutch is ready for use.
Clutch Disassembly, Inspection & Assembly
Refer to Figure 4-4:
If clutch run-in indicated that one or more of the friction
disks did not slip, then the clutch must be disassembled into
separate parts.
1. Allow clutch to cool to ambient temperature before
disassembling it.
3/27/12
Table of Contents
2. Rotate the 8 hex head socket bolts (#4) all the way
out to free stop flange (#5).
3. Rotate stop flange (#5) and remove from housing
(#1)
4. Remove the following inner components:
a. Spring kit (#6)
b. Pressure flange (#7)
c. 1st Friction disk (#8)
d. Hub with flange and pull collar (#2 & #3)
e. 2nd Friction disk (#8)
f. Bearing (#9)
IMPORTANT: Check position of lip on stop flange.
(UP or DOWN). Replace stop flange with lip UP if
one spring (#6) is included and DOWN if two
springs (#6) are included.
5. Inspect all components and replace to their original
position. Make certain stop flange (#5) is replaced
with its flanges in its original position. See important
note in Figure 4-4.
6. Fully tighten all 8 hex socket bolts (#4).
Type B
27902
PR1660, PR1672 & PR1690 Powered Rakes 314-216M
Type B Slip Clutch Assembly
Figure 4-4
21302
17