Jacobsen R-311, Parts & Maintenance Manual

Page: 22 / 172

4 MAINTENANCE
22
4.14 HYDRAULIC OIL FILTERS __________________________________________________________________
The hydraulic system is protected by two 10 micron filters.
To replace hydraulic oil filter:
1. Remove the old filter.
2. Fill new filter with oil then install new filter. Hand tighten only.
3. Operate engine at idle speed with hydraulic system in neutral
for five minutes.
4. Check hydraulic oil level and fill as required.
4.15 ELECTRICAL SYSTEM _____________________________________________________________________
General precautions that can be taken to reduce electrical problems
are listed below.
1. Make certain all terminals and connections are clean and
properly secured.
2. Check the Interlock System, and circuit breakers regularly.
If the Interlock System does not function properly and the
problem cannot be corrected contact an authorized Jacobsen
Dealer.
3. Keep the wire harness and all individual wires away from
moving parts to prevent damage.
4. Make sure the seat switch harness is connected to the main
wire harness.
5. Check the battery and battery charging circuit.
6. Do not wash or pressure spray around electrical connections
and components.
4.16 MUFFLER AND EXHAUST __________________________________________________________________
To protect from carbon monoxide poisoning, inspect the complete
exhaust system regularly, and always replace a defective muffler.
If you notice a change in the color or sound of the exhaust, stop the
engine immediately. Identify the problem and have the system
repaired.
Torque all exhaust manifold hardware evenly. Tighten or replace
exhaust clamps.
4.17 TIRES ___________________________________________________________________________________
1. Keep tires properly inflated to prolong tire life. Check inflation
pressure while the tires are cool. Inspect tread wear.
1. Check the pressure with an accurate, low pressure tire gauge.
2. Keep tires inflated to:
Front - 16-20 psi - (110-138 kPa)
Rear - 10-12 psi (69-83 kPa)
Casters - 20-25 psi (138-172 kPa)
WARNING
Charge filter is under pressure. Remove filter slowly to prevent
personal injury.
!
CAUTION
Always turn the ignition switch off and remove the negative
battery cable (Black) before inspecting or working on the electrical
system.
!
WARNING
Exhaust fumes contain carbon monoxide that is toxic and can be
fatal when inhaled.
NEVER operate an engine without proper ventilation.
!
CAUTION
Unless you have the proper training, tools, and experience, DO
NOT attempt to mount a tire on a rim. Improper mounting can
produce an explosion which may result in serious injury.
!