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Gravely ZT HD User Manual

Gravely ZT HD
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EN - 23
CHECK BATTERY
Clean Battery
1. Disconnect battery cables, negative cable
first.
2. Clean terminals and battery cable ends
with a wire brush.
3. Coat terminals with dielectric grease or
petroleum jelly.
4. Reinstall battery cables, positive first.
CHECK MOWER BELTS
Check belts for wear and replace as needed.
CHECK HYDRAULIC SYSTEM
Check Hydraulic Oil Level
1. Place unit in service position. See
Service Position on page 20.
2. Check oil level in expansion tanks. Oil
should reach the cold fill indicator mark.
See Figure 26.
IMPORTANT: Engine should be cold when
checking initial oil level.
3. Operate engine for 1 minute and recheck
oil levels.
4. Add hydraulic oil, if needed.
a. Remove expansion tank caps.
b. Fill expansion tanks with 15W-50
synthetic motor oil until oil reaches the
cold fill indicator mark. See Figure 26.
c. Reinstall expansion tank caps.
Change Hydraulic Oil and Filter
1. Operate unit for a few minutes to warm
hydraulic oil.
2. Stop engine, remove key and wait for all
moving parts to stop and for hot parts to
cool.
3. Position container under oil filter to catch
used oil.
See Figure 27.
4. Remove filter guard and oil filter from
transaxle.
5. Remove the vent / fill plug from the fill
port and allow transaxle to drain
completely.
WARNING: Battery posts,
terminals and related
accessories contain lead. Wash
hands after handling.
CAUTION: AVOID DAMAGE.
DO NOT allow tools to contact
metal surfaces when removing
positive battery cable.
CAUTION: Keep body parts
away from idler when
releasing idler spring tension.
Figure 26
1. Cold Fill Line
1

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Gravely ZT HD Specifications

General IconGeneral
Engine BrandKawasaki
Transmission TypeHydro-Gear ZT-3100
Turning RadiusZero-turn
Cutting Width60 inches
Fuel Capacity5 gallons
Deck MaterialSteel
Engine ModelFR691V

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