Using the Transmission Bypass Rods
Do not tow the mower, even with the bypass valves engaged. Serious
transmission damage will result from doing so.
PARKER TRANSMISSION (IF EQUIPPED)
If for any reason the mower will not drive or you wish to move the mower, the two
hydrostatic transmissions are equipped with a bypass that will allow you to manually
move the mower short distances.
1. Engage the transmission bypass valves by pulling the bypass lever (a) upward and
all the way back (Figure 34).
a
2. To release the bypass lever (a), push the lever forward (Figure 34).
HYDRO-GEAR TRANSMISSION (IF EQUIPPED)
1. To engage the transmission bypass rods, pull the rod (a) up into the larger
opening of the key slot, then pull back until the collar on the rod passes through
the frame (Figure 35).
2. Lower the rod back into the smaller opening of the key slot, making sure the collar
is secured on the outside of the frame (b). Repeat on opposite side (Figure 35).
700 Series
a
b
3. After moving mower, reverse Steps 1 and 2 to disengage the bypass rods.
Hydrostatic Transmission (500 Series)
PARKER TRANSMISSION (IF EQUIPPED)
The 500 series with Parker hydrostatic transmission is equipped with a filter
and dipstick.
PRODUCT CARE
WARNING
Figure 34
900 Series
a
Figure 35
To check the transmission oil, locate the dipstick (a) on both the LH and RH
transmission assemblies (Figure 36).
Full Hot
Full Cold
1/8" up dipstick
Remove the dipstick and check the oil level. When cold, the level should be no higher
than 1/8" up on the dipstick. When hot the level should not exceed the "H" mark
on the dipstick. Exceeding these levels could cause the oil to overflow when hot
(Figure 36).
To change the transmission oil:
1. Remove the dipstick.
2. Place a suitable container under the drain plug (a) on the transmission. Remove
the drain plug (a) and allow the transmission oil to drain (Figure 37).
3. Using a pair of needle-nose pliers or a magnet remove the filter.
4. Replace the filter and drain plug (torque to 115-135 in-lbs) and fill the
b
transmission assembly to 1/8" up on the dipstick.
5. Replace the dipstick.
NOTE: Make sure the dipstick is fully tightened. If the dipstick is not fully
tightened, transmission oil could leak and cause damage to the transmission due
to insufficient oil.
6. Drain old oil filter prior to disposal. Place used oil in appropriate containers and
deliver to an approved recycling collection facility.
HYDRO-GEAR TRANSMISSION (IF EQUIPPED)
The 500 series with Hydro-Gear hydrostatic transmission is equipped with dual
integrated hydrostatic pumps/transaxles that are equipped with a transmission
oil expansion reservoir. Under normal operating conditions, the oil level in the
expansion reservoir does not need to be checked and no additional oil is needed. If
checking the reservoir oil level, proceed as follows:
Check the oil level ONLY before starting the mower when the transmission
oil is fully cooled.
26
H
a
Figure 36
a
Figure 37
WARNING