Toro 91764SL User Manual

Page of 140
General Information
Storage 
It is very important that the water system be drained 
to avoid freezing and damaging the components. 
Drain system as follows: 
1.  Stop engine, remove key from ignition switch and 
remove wires from spark plugs. 
2.  Remove (2) screws securing drive shield to frame 
and remove shield. 
3.  With the engine ”OFF” and key removed from igni-
tion, rotate the drive coupling by hand until resistance is 
felt. Continue to rotate the coupling about 1/4 revolution, 
opening the cycling valve. 
4.  Using the appropriate reducers (National Pipe 
thread), connect a source of compressed air (maximum 
pressure 150 psi – minimum pressure 90 psi) to the wa-
ter inlets on either side of machine. 
DANGER: Compressed air can penetrate the skin 
and cause physical harm. Use extreme caution and 
wear protective goggles and gloves when working 
with high pressure air. Get prompt medical attention 
if an injury occurs. 
5.  Let compressed air flow through the machine for 3 
minutes. While compressed air is flowing, temporarily 
open the spray wash and high pressure drain valve, 
purging water from the spray wash and high pressure 
system. 
6.  Disconnect compressed air and reducers. Reinstall 
the drive shield previously removed and tighten the re-
lief valve tube. 
7.  Remove and drain the water filter container. Install 
new filter and replace the filter container. 
Engine 
1.  Drain the engine oil from the oil pan and replace the 
drain cap. 
2.  Remove and discard the oil filter. Install a new filter. 
3.  Refill the engine with 3 qts. of recommended SAE 
30 wt. motor oil. 
4.  Start the engine and run at idle speed for two min-
utes. DO NOT RUN LONGER THAN TWO MINUTES. 
5.  Stop the engine; remove the spark plugs. 
6.  Pour one ounce of clean engine oil into spark plug 
holes. 
7.  With the spark plugs removed, crank the engine 
with the starter for a least 12 revolutions to distribute oil 
in the cylinders. 
8.  Reinstall spark plugs. 
9.  Drain the gasoline from the fuel tank and fuel lines. 
Reinstall all lines and secure all connections. 
10.  Thoroughly clean and service the air cleaner. 
11.  Check the oil filler cap and fuel tank cap to ensure 
they securely in place. 
Traction Unit 
1.  Thoroughly clean machine. 
2.  Grease or oil all fittings or pivot points. 
3.  Check to make sure all tires are over inflated to 20 – 
30 p.s.i. 
4.  Lightly sand and use touch up paint on all areas that 
are scratched, chipped or rusted. 
5.  Drain and replace hydraulic oil and filter on cam 
gear case. 
6.  Drain and replace oil in water pump case. 
7.  Clean the battery, terminals and posts with a wire 
brush and baking soda solution. Coat cable terminals 
and battery posts with skin over grease or petroleum jel-
ly. Recharge battery. 
General Information 
Page 6 – 36  Rev. B 
Hydroject 3000