Farm Star SRTC-406A - Manual (Page 21)

23 20
PTO DRIVELINE INSTALLATION
Spray WD-40 into the yoke and wipe. This should
remove some of the paint and make it easier to slide the
yoke onto the input shaft of the gearbox.
Remove shearbolt and retaining ring (4) from gearbox
input shaft (3).
1. Drive shield
3. Input driveline shaft half
4. Retaining ring
5. Nut
6. Shearbolt grade 2
1 /
2
– 13 NC x 3” long
7. Gearbox
Figure 5. Shear Bolt Driveline Installation
3. If driveline must be cut to a shorter length, clamp
driveline in a well padded vise to prevent damage to
the shield. Cut off shield where marked. Using cut-off
section of shield as a guide, cut shaft the same
amount. (Figure 4.)
4. Repeat the procedure to the other driveline half.
Remove all burrs and cuttings.
Figure 4.
WARNING!
When attaching PTO yoke to tractor PTO shaft, it is
important that spring-activated locking pin or balls
operate freely and are seated in groove on PTO shaft.
A loose shaft could slip off and result in personal
injury or damage to equipment.
Carefully raise and lower the cutter and check to be
sure the PTO assembly does not jam. If it does, cut equal
amounts from each half of the PTO assembly.
Adjust the tailwheel and lift arms so the cutter is level.
Then raise the tractor lift very slowly, making sure that
the front drive shaft shield does not hit the front of the
cutter. If it does, damage will be done to the drive shaft
shield and, if interference is bad enough, it WILL also
damage the drive shaft itself.
NOTE: This type of damage is NOT covered under
warranty, as it is totally under the control and the
responsibility of the operator.
Use the lift control limiting stop on the tractor control
lever to limit the upward travel of the lever so the lift can-
not be raised high enough to cause contact between the
drive shaft shield and front shielding.
INSTRUCTIONS
(continued)
Grease the input shaft of the gearbox before installing
the PTO shaft. This reduces the chance of the PTO shaft
yoke from galling to the input shaft if the shear pin should
break.
Remove rear drive shield (1) from driveline. To remove,
turn each plastic clip 1 /
4
turn and then lift out. Then slide
rear shield so entire joint assembly is exposed. (Refer to
figure 5.)
To prevent seal damage, carefully push driveline onto
gearbox input shaft until it contacts gearbox housing.
Install retaining ring (4) and then pull driveline ahead.
NOTE: A grade 2 bolt must be used for the shear bolt
to provide gearbox protection.
Align the holes in the driveline yoke and gearbox input
shaft and install and tighten shear bolt (6) and nut (5).
Lubricate rear driveline half and install front driveline
half.
TRANSPORTING
Pay particular close attention to the Safety Messages
regarding cutter transport. Avoid unnecessary injuries
and equipment damage by exercising cautious, con-
scientious travel procedures.
Attaching the cutter to the tractor increases the overall
length of the working unit. Allow additional clearance for
the cutter to swing when turning.
Raise the cutter as high as possible for transporting,
while maintaining clearance between the driveline and
deck of the 3-point lift cutter.
DO NOT OPERATE PTO DURING TRANSPORT.
STORING SAFELY
• Always store in a clean, dry location away from chil-
dren and livestock
• Storage location should be level and solid to make
hitching and unhitching easy.
REMOVING CUTTER FROM
TRACTOR
Disengage tractor PTO.
Disconnect driveline from tractor PTO.
Collapse driveline as far as possible and store it to pre-
vent ground contact. Place blocks under cutter side
skids. Lower cutter onto blocks, disconnect cutter from
tractor 3-point hitch, and carefully drive tractor away from
cutter.
BLADES
The blades will last a long time cutting grass, but will
wear rapidly when contacting the ground. If they are
clipping into the ground, they will have to be sharpened
frequently.
The cutting action of the blade will be much cleaner,
create less shock loads and require less power if the
blades are kept quite sharp. That is with a flat or blunt
edge that is not over 1/32” thick. Putting a knife-sharp
edge (where both sides come to a sharp point) on the
blades will not help, as a sharp edge will round off very
quickly and doing so will only reduce the total life of the
blades.
OPTIONS
OPERATION INSTRUCTIONS
(continued)
WARNING!
When this machine is operated in populated areas,
along roads, or in other areas where thrown objects
could injure persons or property, standard equip-
ment safety chain shielding (which is designed to
reduce the possibility of thrown objects) must be
installed.
Chain guards are not mandatory for agricultural use
only (i.e. - out in fields where people, livestock, or
property that could be damaged are not present). If
this machine is not equipped with chain shielding,
operation must be stopped when anyone comes
within several hundred feet.
Optional Chain Shield Kit for STTC-404A
Kit No. 652424
Optional Chain Shield Kit for SRTC-405A
Kit No. 652564
Optional Chain Shield Kit for SRTC-406A
Kit No. 652574
CAUTION!
All tractors that are not equipped with a “live” power
takeoff (PTO) need to be equipped with an over-
running PTO clutch driveline.
Use of a standard PTO driveline that does not have
an over-running clutch on these tractors, will allow
the cutter blade assembly to act as a flywheel. This
can cause damage to the tractor’s internal PTO drive
train and can make stopping the tractor’s forward
travel difficult.
CAUTION!
There are PTO over-running clutch attachments
available. However, they will increase the length of
the driveline and may cause the front knuckle joint to
operate beyond the cover of the tractor master PTO
shield. This is NOT recommended and a dangerous
operating condition will be present.