Locke MP-160, MP-148, MP-172 Lawn Mower User Manual


 
SECTION IV
MAINTENANCE
4-1 MAINTENANCE CHECK LIST
Perform scheduled maintenance as outlined below.
Lower implement to ground, turn off tractor and set
parking brake before doing maintenance inspections or
work. All bolts should be torqued as indicated in torque
chart unless otherwise indicated.
THE MOWER CAN FALL FROM HY-
DRAULIC SYSTEM FAILURE. TO
AVOID SERIOUS INJURY OR DEATH,
SECURELY SUPPORT MOWER BE-
FORE WORKING UNDERNEATH.
BEFORE EACH USE
1. Check tractor tire air pressure. Refer to tractor
operator’s manual. Mower transport tire pressure
should be 22 psi; deck tire pressure should be 50
psi.
2. Check blades and spindles to be sure that no
foreign objects such as wire or steel strapping bands
are wrapped around them.
3. Check blade bolts for tightness. Tighten bot-
tom blade bolts to 76 ft./lbs, top mulching blade
bolts to 45 ft./lbs.
4. Inspect blades for wear. Replace if necessary
per paragraph 4-5. Use only genuine Locke Turf re-
placement parts. If it is necessary to sharpen the
blades, remove the blades from the spindles before
sharpening. DO NOT sharpen blades while still at-
tached to mower.
5. Make certain all shields are in place and in
good condition. Repair or replace any missing or dam-
aged shields.
6. Inspect wheel(s) for wear, damage or foreign
objects. Repair or replace any missing or damaged
shields.
7. Perform BEFORE EACH USE lubrication per
paragraph 4-2.
8. During operation, listen for abnormal sounds,
which might indicate loose parts, damaged bearings, or
other damage. Correct any deficiency before continuing
operation.
AFTER EACH USE
1. Clean all debris from machine especially un-
derside of deck, underneath belt shield and off safety
decals. Replace any missing or illegible decals.
2. Inspect cutter for worn or damaged compo-
nents. Repair or replace before next use. Any replace-
ment components installed during repair shall include
the components’ current safety decals specified by the
manufacturer to be affixed to the component.
3. Store cutter in a dry place.
40 HOURS
Check belt for proper tension. Refer to paragraph 4-3.
WARNING
4-2 LUBRICATIONS
NOTE
The multi-purpose grease referenced in this section
is a NLGI Grade 2 type grease. Figure 4-2 shows the
necessary position for servicing wing drivelines.
BEFORE EACH USE
1. Drive line Universal Joints – Apply multi-
purpose grease with grease gun.
2. Drive line Guard – Apply 2-3 shots of multi-
purpose grease with grease gun to plastic fitting.
3. Wheels – Apply multi-purpose grease with
grease gun.
4. Caster Pivot – Apply multi-purpose grease with
grease gun.
5. Constant Velocity (CV) Joint – Position CV
joint as straight as possible to be sure grease will
penetrate to ball joint. Lubricate the central body
with a minimum of 30 shots of grease every 8
hours. Lubricate telescoping members with 10
shots every 8 hours and every 40 hours pull the two
sections apart, apply thin coat of multi-purpose
grease to outside of inner (male) section and reas-
semble.
20 HOURS
6. Deck Drivelines – Disconnect PTO driveline,
pull the two sections apart, apply thin coat of multi-
purpose grease to outside of inner (male) section. Re-
assemble sections and install. Pull each section to be
sure driveline and shields are securely connected.
Make certain PTO shielding is in good condition.
40 HOURS
7. Gear boxes (5) – Add EW80W-90 gear oil, if
necessary, to bring oil level to check plug or dip stick
mark.
END OF SEASON
8. Transport Wheel Bearings – Pack transport
wheel bearings with grease at end of each mowing sea-
son.
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