MAINTENANCE
MAINTENANCE
ZTR 01/21
Maintenance Section 6-12
© 2021 Alamo Group Inc.
6. Repeat steps 1-5 on the opposite side transaxle drive.
7. Drain old oil filters of all free flowing oil prior to disposal.
Place used oil in appropriate containers and deliver to an
approved recycling collection facility.
8. Remove the Top Port Plug from the left side and right
side transaxles prior to filling with oil. This will allow the
transaxles to vent during oil fill.
9. Remove the cap from the transaxle’s Oil Reservoir
Tank located on the vehicle frame.
10. Fill with 20W50 motor oil until oil just appears at the
bottom of each transaxle’s top port (approximately 2 qts.
per transaxle, 4 qts. total). Install the top port plug into
each transaxle as the oil level reaches this port.
Note
: The oil volume figure shown does not include what
is in the Oil Reservoir Tank hose or the Oil Reservoir
Tank.
11. Install and torque the Top Port Plugs to 180 in. lbs.
(20.3 Nm).
12. Continue to fill the transaxles through the Oil Reser-
voir Tank until the “Full Cold” line is reached on the Hydro-
Gear Oil Reservoir Tank.
13. Re-install the Oil Reservoir Tank cap by hand. Be
careful to not overtighten.
14. Proceed to Purging Procedures.
T
op
Po
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t
P
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Oil Reservoir Tanks
Fluid and Filter Change Procedure
(Models Produced After 2020)
1. Remove the three 1/4” filter guard screws and filter
guard. Clean any loose debris from around the perimeter
of the filter.
2. Place an oil drain pan (12” or more diameter and 8 qt.
capacity is optimal) beneath the oil filter. Remove the oil
filter from the transaxle.
3. After the oil has drained, wipe the filter base surface
off and apply a film of new oil to the gasket of the new
replacement filter (Hydro-Gear part number 52114).
(NOTE: WARRANTY IS VOID IF HYDRO GEAR FIL-
TER IS NOT USED.)
4. Install the new filter by hand, turn 3/4 to one full turn
after the filter gasket contacts the filter base surface.
5. Re-install the filter guard with three 1/4” screws. Torque
screws to 65 in. lbs.(7.3 Nm) each.
6. Repeat steps 1-5 on the opposite side transaxle drive.
7. Drain old oil filters of all free flowing oil prior to disposal.
Place used oil in appropriate containers and deliver to an
approved recycling collection facility.
8. Remove the Top Port Plug from the left side and right
side transaxles prior to filling with oil. This will allow the
transaxles to vent during oil fill.
9. Fill with 20W50 motor oil until oil just appears at the
bottom of each transaxle’s top port (approximately 2 qts.
per transaxle, 4 qts. total). Install the top port plug into
each transaxle as the oil level reaches this port.
10. Install and torque the Top Port Plugs to 180 in. lbs.
(20.3 Nm).
11. Proceed to Purging Procedures.
Fill Port Plug
Summary of Contents for HDE-4 Series
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Page 41: ...INTRODUCTION SECTION 2...
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Page 57: ...OPERATION SECTION 4...
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Page 106: ...HDE 4 SERIES ZERO TURN MOWER P N 50081705 Printed in U S A...