HYDROSTATIC DRIVE SYSTEM
5-6
Toro TITAN 2014 Service Manual
5
Hydrostatic Drive Belt Replacement
Hydrostatic Drive Belt Removal
1. Safely raise and support unit so rear wheels are off
the ground.
2. Remove PTO belt tensioner spring (A) from the deck
to relieve PTO belt tension (Fig. 065). See “PTO Belt
Replacement - 48, 54 & 60 Inc Deck” on page 6-5.
Fig. 065
PICT-3034
3. Remove PTO belt from PTO clutch.
4. Disconnect the wire harness connection to the PTO
clutch.
5. Remove the PTO clutch bolt and then remove the
clutch from the engine crankshaft.
6. Remove the drive belt tensioner spring (B)
(Fig. 065).
7. Remove the belt from around the crankshaft drive
pulley then remove the drive pulley from the engine
crankshaft. Make note of pulley orientation for
assembly.
8. Disengage the drive belt from the tensioner pulley
and idler pulley.
9. Remove the belt from around both hydro input
pulleys. Do not bend or damage the hydro cooling
fans while walking the belt upward off the input
pulleys.
10. Remove the belt from the unit and inspect. Replace
if necessary.
Purging Procedure
Due to the effects air has on efficiency in hydrostatic
drive applications, it is critical that it is purged from the
system.
This purge procedure should be implemented any time
a hydrostatic system has been opened to facilitate
maintenance, any additional oil has been added to the
system, or a replacement transaxle has been installed.
Air creates inefficiency because its compression and
expansion rate is higher than that of the oil in hydrostatic
drive systems.
The resulting symptoms of air in hydrostatic systems
may be:
• Noisy operation
• Lack of power or drive after short term operation.
• High operation temperature and excessive
expansion of “oil”; in the latter case, oil may
overflow.
The following procedure should be performed with the
drive wheels off the ground and then repeated under
operating conditions.
1. With the bypass valve open (push position) and the
engine running, slowly move the control handles
(forward/reverse levers) in both forward and reverse
directions 5 to 6 times; as air is purged from the
transaxles, the oil level will drop.
2. With the bypass valves in the closed position (drive
position) and the engine running, slowly move
the control handles in both forward and reverse
directions 5 to 6 times.
3. It may be necessary to repeat steps 1 and 2 until
all air is completely purged from the transaxles.
When the transaxles move forward at normal speed,
purging is complete.
A
B
Summary of Contents for titan mx
Page 1: ...2014 TITAN ZX MX Service Manual Residential Products ...
Page 2: ......
Page 4: ...ABOUT THIS MANUAL THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 10: ...SAFETY INFORMATION 1 2 Toro TITAN 2014 Service Manual 1 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 46: ...CHASSIS 3 26 Toro TITAN 2014 Service Manual 3 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 52: ...ENGINE 4 6 Toro TITAN 2014 Service Manual 4 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 84: ...MOWER DECK 6 18 Toro TITAN 2014 Service Manual 6 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 97: ...ELECTRICAL 7 13 Toro TITAN 2014 Service Manual 7 PTO Circuit Schematic Fig 131 PICT 2015 ...
Page 103: ...ELECTRICAL 7 19 Toro TITAN 2014 Service Manual 7 Fig 143 PICT 3020 Wire Harness View 1 of 3 ...
Page 104: ...ELECTRICAL 7 20 Toro TITAN 2014 Service Manual 7 Wire Harness View 2 of 3 Fig 144 PICT 3021 ...
Page 105: ...ELECTRICAL 7 21 Toro TITAN 2014 Service Manual 7 Fig 145 PICT 3022 Wire Harness View 3 of 3 ...
Page 106: ...ELECTRICAL 7 22 Toro TITAN 2014 Service Manual 7 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 107: ......
Page 108: ...2014 TITAN ZX MX Service Manual Form Number 492 9339 ...