Worldlawn PYTHON WYP72BSV37EV5, Operator'S Manual

Page: 32 / 48

32
Air trapped in the oil may cause the following
symptoms:
•
Noisy operation.
•
Lack of power or drive after short-term
operation.
•
High operation temperature and excessive
expansion of oil.
Before starting make sure the reservoir is at the
proper oil level. If it is not, fill to the vehicle
manufacturer’s specifications.
The following procedures should be performed with
the vehicle drive wheels off the ground, then
repeated under normal operating conditions.
WARNING
POTENTIAL FOR SERIOUS INJURY
Certain procedures required the vehicle engine
to be operated and the vehicle to be raised off
of the ground. To prevent possible injury to the
servicing technician and/or bystanders, ensure
the vehicle is properly secured.
1. With the bypass valve open, (see Drive Wheel
Release in the Operation section) and the
engine running, slowly move the directional
control in both forward and reverse directions (5
to 6 times). As air is purged from the unit, the
oil level in the reservoir will drop.
2. With the bypass valve closed and the engine
running, slowly move the directional control in
both forward and reverse directions (5 to 6
times). Check the oil level and add oil as
required after stopping engine.
3. It may be necessary to repeat steps 1 and 2
until all the air is completely purged from the
system. When the drive wheels rotate forward
and reverse at normal speed and the reservoir
oil remains at a constant level, purging is
complete.
THREAD LOCKING ADHESIVES
Thread locking adhesives such
as “Loctite 242” or
“Fel-Pro, Pro-lock nut type” are used on the
following fasteners:
1. Clutch retaining bolt in end of engine crankshaft.
2. Deck yoke to hydro frame.
COPPER-BASED ANTI-SEIZE
Copper-based anti-seize can be used in the
following locations:
1. On threads of Blade Bolts. See Check Mower
Blades section.
2. Between engine crankshaft, pump drive sheave,
and clutch.
DIELECTRIC GREASE
Dielectric grease can be used on all blade type
electrical connections to prevent corrosion and
loss of contact.
CASTER PIVOT BEARINGS PRE-LOAD AND
LUBRICATION
Service Interval: Once a Year
Tighten the nut until it is snug then back it off 1/8-
1/4 turn. This will set the preload on the bearing.
You should feel a slight drag as you rotate the
caster fork clockwise and counterclockwise
1. Remove the protective cap from the top.
2. Pump grease into the fitting until grease is seen
coming up through the bearing. Do not over fill.
Do not fill the housing.
3. Reinstall the protective cap and tap into place