NMC-WOLLARD MB-4 200-DF, Operation, Maintenance And Parts Manual

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3.7 EVERY 500 OPERATING HOURS OR
6 MONTHS
3.7.1 Change Fuel Filter
See page 5-3 of the Cummins “Operation
and Maintenance Manual B Series Engines”
manual included with this manual.
3.7.2 Check Coolant and Antifreeze
See page 5-9 of the Cummins “Operation
and Maintenance Manual B Series Engines”
manual included with this manual.
3.7.3 Check Axle Oil Level (Front and
Rear)
The axles have three fill plugs each: one on
the outside of each wheel end and one on
the axle housing.
1. Park tractor on a level surface. Shut off
engine and set parking brake.
2. Using a rag and wire brush, thoroughly
clean dirt and rust from around fill plugs.
The axle housing fill plug is the upper
plug.
3. Check oil level in wheel ends, turn wheel
so wheel end plug is horizontal to axle
shaft.
4. Remove each fill plug and check oil level
with a finger. Level should be to height of
fill plug hole. Add oil, SAE 80W-85-140
as required.
3.7.4 Inspect Linings, Pads, Calipers,
Wheel Cylinders, etc.
See 8.3.1
3.7.5 Clean and Inspect Wiring, Battery,
and Cables
1. Inspect all wiring and cable harnesses for
loose connections, evidence of shorting
(burned insulation or terminals) and
frayed wires.
2. Check that retaining clips are secure.
3. Remove exterior dirt and grease by wip-
ing with a cloth dampened with solvent
P-D-680.
4. Allow parts to air dry after cleaning.
Disconnect the positive ca-
ble if charging battery in the vehicle.
5. When disconnecting the battery, first
disconnect the negative cable, then dis-
connect the positive cable.
6. Remove cables from battery posts.
7. Inspect battery for evidence of electro-
lyte loss. Inspect case for cracks and
leaks.
8. Check that posts are secure. If loose,
replace battery. (Send battery to over-
haul personnel for salvage.)
9. If corrosion or dirt is present, clean top
of battery with a solution of clean warm
water and baking soda. Scrub areas
with a stiff bristle brush being careful not
to scatter corrosion residue. Wipe clean
with a cloth moistened with baking soda
in water.
10. Using a common wire-brush type bat-
tery tool, brush battery posts and inside
of cable ends.
3.7.6 Change Transmission Filter
Element (Funk Transmission)
Refer to the Funk Transmission Mainte-
nance and Service Manual enclosed with
this manual. See Figure 3-4.
3.7.7 Service Hydraulic Filter And
Suction Screen
1. Shut the gate valve on the reservoir.
PAGE 3-9
JULY 31, 2006
M200 MB4 Tow Tractor Manual No. 42975