Simplicity 7100 Series Operator's Manual page 19

Normal Care
3. Clean dirt from the hydrostatic trans¬
mission filter and filter holder into
which it is mounted and remove and
discard filter.
4. When fluid has drained out of transmis¬
sion, install new hydrostatic transmis¬
sion filter in the following way:
Fill the filter with new fluid. Coat
gasket with transmission fluid, screw
filter on until gasket contacts base, then
tighten 1/2 to 3/4 turn more. Use no
tools. Turn by hand only. Install and
tighten drain plug assembly.
5. Remove the fill cap (C, figure 9) and
clean dirt away from the relief valve (E).
Using a clean funnel, add multi-purpose
power train oil or Type F transmission
fluid into the fill tube while holding the
relief valve up until fill tube will accept
no more fluid. Replace the fill cap hand
tight.
NOTE
Vent rod must be held fully up for the
entire time that fluid is being added.
6. Start engine and set it at idle speed, or
slightly above.
CAUTION
Make sure that free wheeling latch is
firmly down and that parking brake is
fully engaged before starting the en¬
gine.
7. Let engine run at least five minutes,
then stop engine and immediately lift
relief valve and remove fill tube cap.
While relief valve is up, pour more fluid
into the transmission fill tube until level
reaches the "run-over" point of the
tube. Then install and tighten the fill
tube cap. Total fluid installed should be
three quarts or more. Be extremely
careful to keep all dust and dirt out of
transmission while changing oil and
filter. Check filter and drain plug for
leaks.
REPACK PLANETARY GEAR
ASSEMBLY - SEMI-AUTOMATIC
1. With tractor engine off, key removed,
and parking brake set, pry off cover cap
(D, figure II) carefully with a screw¬
driver.
2. Work No. 2 Lithium grease into plane¬
tary assembly with hand. Be sure no dirt
enters the grease or planetary assembly.
Also fill the cap half full with grease.
3. Replace the cap and tap it in place.
4. Apply a small amount of grease to the
pin groove of the drive brake detent (C)
and to the head of the bolt (B) that
actuates the interlock safety switch (A).
A. Interlock Safety Switch D. Cover Cap
B. Switch Actuating Bolt E. Planetary
C. Brake Detent Gear
Figure 11. Planetary Gear - Semi-
Automatic
17