The information in this section is written for operators who possess basic
mechanical skills. If you need help, your dealer has trained service technicians
available. For your protection, read and follow the safety information in this
manual.
WARNING
Keep all persons away from operator control area while performing
adjustments, service, or maintenance.
CAUTION
CAUTION
If you do not understand any part of this manual and need assis-
tance, see your dealer.
Always wear relatively tight and belted clothing to avoid getting
caught in moving parts. Wear sturdy, rough-soled work shoes and protec-
tive equipment for eyes, hair, hands, hearing, and head; and respirator or
filter mask where appropriate.
BLOCKING METHOD
WARNING
Never go underneath equipment (lowered to the ground or raised)
unless it is properly blocked and secured. Never place any part of the
body underneath equipment or between moveable parts even when the
engine has been turned off. Hydraulic system leak down, hydraulic sys-
tem failures, mechanical failures, or movement of control levers can
cause equipment to drop or rotate unexpectedly and cause severe injury
or death. Follow Operator's Manual instructions for working underneath
and blocking requirements or have work done by a qualified dealer.
To minimize the potential hazards or working underneath the cutter, follow
these procedures:
1.
Jackstands with a load rating of 453.6 kg (1000 lbs) or more are the only
approved blocking device for this cutter. Install a minimum of four
BLADE SERVICE
Blade Removal
NOTICE
■
If blade pin (1) is seized in crossbar and extreme force will be
needed to remove it, support crossbar from below to prevent gearbox
damage.
1.
Disconnect driveline from tractor PTO.
2.
Raise cutter and block securely (see Figure 10).
3.
Open blade access cover and align crossbar assembly (3) with blade
access hole in the cutter frame. Remove cap screw (8) blade pin lock clip
(7) keyhole plate (6) and shims (5 & 4). Carefully drive blade pin out of
crossbar.
4.
Rotate crossbar and repeat for opposite blade.
12 Owner Service
OWNER SERVICE
Figure 10.
Jackstand Placement and Lubrication Points
X
jackstands (shown by
s in Figure 10) under the cutter before working
underneath unit.
2.
Do not position jackstands under wheels, axles, or wheel supports.
Components can rotate and cause cutter to fall.
3.
Consider the overall stability of the blocked unit. Just placing jackstands
underneath will not ensure your safety.
4.
The working surface must be level and solid to support the weight on the
jackstands. Make sure jackstands are stable, both top and bottom. Make
sure cutter is approximately level.
5.
With full cutter weight lowered onto jackstands, test blocking stability
before working underneath.
6.
If cutter is attached to tractor when blocking, set the brakes, remove key,
and block cutter before working underneath.
7.
Securely block rear tractor wheels, in front and behind. Tighten tractor
lower 3-point arm anti-sway mechanism to prevent side-to-side
movement.
LUBRICATION INFORMATION
Use a lithium grease of #2 consistency with a MOLY (molybdenum disulfide)
additive for all locations unless otherwise noted. Be sure to clean fittings thor-
oughly before attaching grease gun. One good pump of most guns is sufficient
when the lubrication schedule is followed.
Do not let excess grease collect on or around parts, particularly when operating
in sandy areas.
See Figure 10 for lubrication points and frequency or lubrication based on nor-
mal operating conditions. Severe or unusual conditions may require more fre-
quent lubrication.
Gearbox Lubrication
For gearbox, use a high quality gear oil with a viscosity index of 80W or 90W
and an API service rating of GL–4 or –5 in gearboxes. Fill gearbox until oil runs
out the side plug on gearbox. Check gearbox daily for evidence of leakage, and
contact your dealer if leakage occurs.
Driveline Lubrication
1.
Lubricate the driveline slip joint every eight operating hours. Failure to
maintain proper lubrication could result in damage to U-joints, gearbox,
and driveline.
2.
Lower cutter to ground, disconnect driveline from tractor PTO shaft, and
slide halves apart but do not disconnect from each other.
3.
Apply a bead of grease completely around male half where it meets
female half. Slide drive halves over each other several times to distribute
grease.
1. Front U-joint (Mounted) - - - - - - 8 hrs.
2. Slip joint (apply grease
to square shaft) - - - - - - - - - - - - 8 hrs.
3. Rear U-joint (Mounted) - - - - - - 8 hrs.
4. Gearbox - - - - - - - - - - - - - - - - - - Daily
5. Tailwheel pivot tube- - - - - - - - - 8 hrs.
6. Tailwheel (Mounted) - - - - - - - - 8 hrs.
11. Plastic shield bearings - - - - - - -10 hrs.
1. Blade pin
2. Blade
3. Crossbar assembly
4. Shim
5. Shim
6. Key hole plate
7. Blade pin lock clip
8. 1/2 x 1-1/4 HHCS
GR5
Figure 11
. Blade Assembly
MAN1255 (3/19/2018)