Jacobsen R311T-T4I, Safety, Operation And Maintenance Manual

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MAINTENANCE 7
en-37
7 MAINTENANCE
7.1 GENERAL ________________________________________________________________
1. Adjustment and maintenance should always be
performed by a qualified technician. If proper
adjustments cannot be made, contact an Authorized
Jacobsen Dealer.
2. Inspect the equipment on a regular basis, establish
a maintenance schedule and keep detailed records.
a. Keep the equipment clean.
b. Keep all moving parts properly adjusted and
lubricated.
c. Replace worn or damaged parts before operating
the machine.
d. Keep all fluids at their proper levels.
e. Keep shields in place and all hardware securely
fastened.
f. Keep tires properly inflated.
3. Long hair, jewelry, or loose fitting clothing may get
tangled in moving parts.
4. Use the illustrations in the Parts Catalog as
reference for the disassembly and reassembly of
components.
5. Recycle or dispose of all hazardous materials
(batteries, fuel, lubricants, anti-freeze, etc.)
according to local, state, or federal regulations.
7.2 INSPECTING BLADES ______________________________________________________
1. Every 50 hours of operation or whenever blades are
removed from mower, carefully examine the blades
to make sure they are in good operating condition.
Blades showing any bends
(G) , grooves (H) or
cracks ( J) must be replaced.
2. Any of the above conditions can cause a piece of
the blade to break away and be thrown from the
mower causing very serious injury to bystanders or
property damage.
3. A bent blade could have a microscopic crack (G)
that can grow and allow a piece of the blade to
break. Bent blades will also create vibration and
other stress on the machinery.
4. Dust or sand particles can wear a dangerous groove
in the blade
(H) between the air vanes and the flat
portion of the blade that will rapidly grow and
produce a crack (J) permitting a piece of the vane to
break off.
Figure 7A
WARNING
Before you clean, adjust, or repair this equipment,
disengage all drives, lower implements to the ground,
engage parking brake, stop engine, and remove key
from ignition switch to prevent injuries.
Make sure the mower is parked on a solid and level
surface. Never work on a mower that is supported
only by the jack. Always use jack stands.
!
CAUTION
Use care when checking blades to avoid pinching
hands and fingers between blade ends.
WARNING
Never attempt to straighten, weld, or repair a
damaged blade. Always replace a damaged blade.
!
!
G
H
J
HR025