2. Change the hydraulic return filter car
-
tridge.
3. Remove the suction screen clean with
pressure air directed inside the screen.
4. Replace the screen and open the gate
valve.
3.8 EVERY 1000 OPERATING HOURS
OR 1 YEAR
3.8.1 Change Transmission Oil (Funk
Transmission)
Refer to the Funk Transmission Maintenance
and Service Manual enclosed with this man
-
ual.
3.8.2 Change Hydraulic Supply Fluid
And Filter
See page 1-10 for specifications.
IMPORTANT: Whenever the hydraulic pump
is repaired/replaced or whenever the hydrau-
lic fluid is drained, resulting in loss of fluid in
the suction hose, the output (pressure) hose
fitting MUST be cracked open to allow air to
escape from the system until fluid flow
through the pump is established. This is nec-
essary because the hydraulic system does
not allow a free flow of fluid until the accu
-
mulators are charged up to operating pres
-
sure.
3.8.3 Change Axle Oil.
Refer to 9.2.
3.8.4 Adjust Valve Lash Clearances
See page 6-9 of the Cummins “Operation
and Maintenance Manual B Series Engines”
manual included with this manual.
3.8.5 Check Belt Tension
See page 6-9 of the Cummins “Operation
and Maintenance Manual B Series Engines”
manual included with this manual.
3.8.6 Check Belt
See page 6-10 of the Cummins “Operation
and Maintenance Manual B Series
Engines” manual included with this man
-
ual.
3.9 EVERY 2000 OPERATING HOURS
OR 2 YEARS
3.9.1 Inspect Vibration Damper
See page 7-9 of the Cummins “Operation
and Maintenance Manual B Series
Engines” manual included with this man
-
ual.
3.9.2 Change Coolant
See page 7-3 of the Cummins “Operation
and Maintenance Manual B Series
Engines” manual included with this man-
ual.
3.10 ACCUMULATORS FOR
HYDRAULIC BRAKE SYSTEMS
To maintain system performance the man-
ufacturer (HYDAC) recommends a regular
check of the gas precharge pressure. A
loss in the gas precharge pressure will
PAGE 3-10 PREVENTIVE MAINTENANCE
JULY 31, 2007
M200 MB4 Tow Tractor Manual No. 42975
FIGURE 3-4. TRANSMISSION FILTER
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