Operation - Gravely Pro-Walk Hydro 36HR PS Owner's/Operator's Manual

FILLING FUEL TANK
To add fuel to the fuel tank:
1. Clean fuel caps and surrounding area to
prevent dust, dirt, and debris from
entering fuel tanks.
2. Remove fuel caps.
IMPORTANT: Refer to Engine Manual for
correct type and grade of fuel.
3. Fill fuel tank to the bottom of filler neck.
See SPECIFICATIONS on page 52 for
fuel tank capacity.
IMPORTANT: DO NOT OVERFILL! This
equipment and/or its engine may include
evaporative emissions control system
components, required to meet EPA and/or
CARB regulations, that will only function
properly when the fuel tank has been filled to
the recommended level. Overfilling may
cause permanent damage to evaporative
emissions control system components. Filling
to the recommended level ensures a vapor
gap required to allow for fuel expansion. Pay
close attention while filling the fuel tank to
ensure that the recommended fuel level
inside the tank is not exceeded. Use a
portable gasoline container with an
appropriately sized dispensing spout when
filling the tank. Do not use a funnel or other
device that obstructs the view of the tank
filling process.
4. Replace fuel cap and tighten.
5. ALWAYS clean up spilled fuel.
GASOLINE
IMPORTANT: ALWAYS use gasoline that
meets the following guidelines:
• Clean, fresh gasoline.
• A minimum of 87 octane/87 AKI (91
RON). High altitude use may require a
different octane. Consult your engine
manual.
• Gasoline with up to 10% ethanol
(gasohol) or up to 15% MTBE (methyl
tertiary butyl ether) is acceptable.
• Use of any gasoline other than those
approved above may void the engine
warranty. If the pumps are not marked
for the content of alcohol or ethers,
check ethanol and MTBE levels with
the fuel supplier.
• Do not modify the fuel system to use
different fuels.
• Never mix oil and gasoline.
NOTICE: All gasoline is not the same. If the
engine experiences starting or performance
problems after using a new gasoline, switch
to a different fuel provider or fuel brand.

OPERATION

IMPORTANT: Excessively oxygenated or
reformulated fuels (fuels blended with
alcohols or ethers) can damage the fuel
system or cause performance problems. If
any undesirable operating problems occur,
use a gasoline with a lower percentage of
alcohol or ether.
Fuel Stabilizer
Gasoline left in the fuel system for extended
periods without a stabilizer will deteriorate,
resulting in gum deposits in the system.
These deposits can damage the carburetor
and the fuel hoses, filter and tank. Prevent
deposits from forming in the fuel system
during storage by adding a quality fuel
stabilizer to the fuel. Follow the
recommended mix ratio found on the fuel
stabilizer container.
TEST SAFETY SYSTEMS
NOTICE: Refer to Figure 5 and Figure 6 for
the location of the various controls and
features.
The safety systems installed on your unit
should be checked before each use. Read
the operator manual and be completely
familiar with the operation of the unit before
performing these checks.
Use the following procedures to check for
normal operation. If there is a malfunction
during one of these procedures, do not
operate unit. See your Gravely Dealer for
service.
Perform tests in a clear open area with no
bystanders.
EN - 16
WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
CAUTION: Avoid injury! Engine
exhaust fumes contain carbon
monoxide and can cause serious
illness or death.
Move the unit to an outside area
before running the engine.
Do not run an engine in an enclosed
area without adequate ventilation.
• Connect a pipe extension to
the engine exhaust pipe to
direct the exhaust fumes out
of the area.
Allow fresh outside air into the work
area to clear the exhaust fumes out.