General; Inspecting Blades; Maintenance - Jacobsen 70528 Parts & Maintenance Manual

4

MAINTENANCE

4.1 4 MAINTENANCE

GENERAL________________________________________________________________

!
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 tractor is parked on a solid and level
surface. Never work on a tractor that is supported only
by the jack. Always use jack stands.
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.
4.2

INSPECTING BLADES______________________________________________________

1. Every 50 hours of operation or whenever mower is
removed from tractor, 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.
!
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.
2. Any of the above conditions can cause a piece of
the blade to break away and be hurled 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.
16
CAUTION
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. Do not wear jewelry or loose fitting clothing when
making adjustments or repairs.
4. Use the illustrations in the Parts List as reference
for the disassembly and reassembly of components.
5. Recycle or dispose of all hazardous materials
(batteries, fuel,
according to local, state or federal regulations.
G
lubricants, anti-freeze,
J
H
Figure 4A
etc.)
HR025