laboratory support is unavailable, hard time intervals will
plug. Run engine at 500-600 RPM to fill converter and
lines. Add oil to bring level to low plug. With engine
running at 500-600 RPM, oil temperature at 180 F
(82C) to 200 F (93C) and transmission in neutral, add
PROTRACTED COLD TEMPERATURES BELOW -15F
oil to bring oil level to full plug. Operate for five minutes
and check for leaks. When AOAP laboratory support is
not available, change transmission oil each 500 hours.
temperatures above -15F (-26C). Relubricate with
lubricants specified in Key for temperatures below -15 F
To reach 180F (82C) to 200 F (93C) either work the
If OEA lubricant is required to meet the
grader or stall the converter. To stall the converter,
temperature ranges prescribed in the Key, OEA lubricant
lower blade to ground, apply parking brake, place
is to be used in place of OE/HDO-10 lubricant for all
transmission in fourth gear, advance throttle to half and
temperature ranges where OE/HDO-10 is specified in
engage forward gear for 30 second on and off periods
until the temperature is reached.
3. OIL CAN POINTS. Each 50 hours lubricate control
linkage, pins and clevises, and all exposed adjusting
threads with OE/HDO.
Converter stall for an excessive
length of time will overheat the
4. ENGINE OIL LEVEL HOT OR COLD CHECK. Cold
engine, oil level should be at high mark on dipstick. Hot
engine, oil level must be between high and low marks on
8. TRANSMISSION OIL FILTER.
Filter is to be
dipstick (allow to set 5 minutes before checking).
replaced each time a transmission oil change is directed
by AOAP laboratory. Remove element, clean filter
5. ENGINE. Oil is to be changed each time an engine
housing, install new element and seal.
oil change is directed by AOAP laboratory. When AOAP
replacement, with engine running at 500-600 RPM, oil
laboratory support is not available, change oil each 250
temperature at 180F (82 C) to 200 F (93C) and
transmission in neutral fill transmission to full plug.
Operate for five minutes and check for leaks. When
6. ENGINE OIL FILTER. Filter is to be replaced each
AOAP laboratory support is not available, install new
time an engine oil change is directed by AOAP
filter element each 250 hours.
After installing new filter element, fill
crankcase, operate engine 5 minutes, check housing for
9. HYDRAULIC OIL FILTER. Each 250 hours, remove
leaks, check crankcase oil level and bring to full mark.
element, clean filter shell and install new element. After
When AOAP laboratory support is not available, install
replacement, operate hydraulic system for 5 minutes,
new filter element each 250 hours.
check for leaks, check level and bring to "FULL" mark.
7. TRANSMISSION. Check oil level each ten hours
10. TANDEM CASES. Check level each 50 hours.
with engine running at 500-600 RPM and oil temperature
Remove cover and add oil until it flows from level plug
at 180F (82C) to 200F (93 C) with transmission in
opening. Change gear lubricant only when required by
neutral. Maintain oil level to full plug. Oil is to be
changed each time a transmission oil change is directed
other foreign material. After refill, operate for 5 minutes,
by AOAP laboratory. Remove oil strainer, clean and
check for leaks and bring oil to full mark.
replace using new gasket. Refill transmission to low
CARD 7 of 8