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Section 5: Maintenance & Lubrication
ZT60i & ZT72i (S/N 748110+) Accu-Z
®
Zero Turn Mowers 357-552M
Table of Contents
2/06/14
Hydrostatic Drive System
!
DANGER
Hydraulic fluid under pressure can penetrate skin. Wear
protective gloves and safety glasses or goggles when working
with hydraulic systems. Use a piece of cardboard or wood
rather than hands when searching for hydraulic leaks. If
hydraulic fluid is injected into the skin or eyes, it must be
treated by a doctor familiar with this type of injury within a
few hours or gangrene may result. DO NOT DELAY.
!
WARNING
Always wear adequate eye protection when servicing the
hydraulic system.
The ZT60i & ZT72i mower are equipped with two
independent Hydro-Gear ZT5400
TM
Integrated Zero-
Turn transaxle units. The units are located beneath the
seat and require oil and filter changes on a regular basis.
Check oil level in the expansion tanks daily. Stop
operations immediately if transaxles are operating hot,
noisy, or lacks power after operating for a short time. Wait
for oil to properly cool and then check oil level in
expansion tanks. If expansion tanks are properly filled
with oil, have your nearest Authorized Land Pride
Service department check the units and make necessary
repairs before putting the mower back into service.
Transaxle Oil Check & Filling
Refer to Figure 5-8:
The mower has two independent hydrostatic transaxles.
Each transaxle will require separate oil checks. It is best
to check oil when oil in the transaxle is between
50
o
and 100
o
F. See page 51 for oil specifications.
IMPORTANT: Do not use a high pressure washer on
or around the hydraulic transaxles. Water intrusion
will result and void the warranty.
NOTE: The transaxle units are equipped with bypass
valves. For more information refer to “Moving Mower
with Stalled Engine” on page 17.
IMPORTANT: A transaxle must be purged anytime
oil has been added to the unit or when unit has been
opened to facilitate maintenance.
IMPORTANT: Clean debris from around fill cap
before checking or adding oil to the unit.
NOTE: Be certain to place control arms in the park
position before rotating seat platform up.
1. Park mower on a flat level surface. Make sure blade
engagement switch is (OFF), control levers are fully
(OUT), park brake is (ON) and engine switch key is
(OFF) and removed.
2. Clean transaxle exterior of any debris especially
around the fill port cap. A degreaser may be needed.
3. Remove fill port cap (#8).
4. Oil level should be at the “FULL COLD” line (36) or
about 3/8" deep in the bottom of expansion tank with
oil temperature between 50
o
and 100
o
F. If no oil is
present in the expansion tank, add hydraulic oil until
oil reaches the “FULL COLD” line. Do not overfill.
5. Install top port cap (#8) and hand tighten.
6. Recheck oil level once unit has been operating for
approximately 1 minute.
Transaxle Oil Check & Filling (Left-Hand Shown)
Figure 5-8
IMPORTANT: The transaxles must be purged if no
oil was present in the expansion tank prior to adding
oil to remove any air that may have become trapped.
See “Transaxle Purging Procedures” on page 40.
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