Hydraulic Hoses - Toro GreensPro 1240 Service Manual

Hydraulic Hoses

GreensPro ™ 1240/1260
14211SL Rev A
The hydraulic hoses are subject to extreme conditions such as pressure
differentials during operation and exposure to weather, sun, chemicals, very
warm storage conditions, in addition to mishandling during operation and
maintenance. These conditions can cause damage to the hose or deterioration
to the hose material. Some hoses are more susceptible to these conditions
than others. Examine all of the hydraulic hoses of the machine frequently and
repair or replace them as necessary. Hoses that move during normal machine
operation should be replaced every 2 years. Check hydraulic hoses for the
following signs of deterioration or damage:
•
A hose that is hard, cracked, cut, abraded, charred, leaking, or otherwise
damaged.
•
A hose that is kinked, crushed, flattened, or twisted.
•
A hose cover that is blistered, soft, degraded, or loose.
•
Hose fittings that are cracked, damaged, or badly corroded.
Before disconnecting or performing any work on the hydraulic
system, shut off the engine and press the motion control pedals to
release the pressure in the system.
• Keep your body and hands away from pin-hole leaks or nozzles
that eject hydraulic fluid under high pressure.
• Do not use your hands to search for leaks; use a piece of paper
or cardboard.
• Hydraulic fluid escaping under pressure can have sufficient force
to penetrate the skin and cause serious injury.
• If hydraulic fluid is injected into your skin, the fluid damage to
your body must be surgically removed within a few hours by a
doctor familiar with this form of injury or gangrene may result.
When you replace a hydraulic hose, ensure that the hose is straight (not twisted)
before you tighten the fittings. Observe the imprint (layline) on the hose to do
this. Using 2 wrenches, hold the hose straight with 1 wrench and tighten the
hose swivel nut onto the fitting with the other wrench; refer to
Hydraulic Hoses and Tubes (page
Note: If the hose has an elbow at 1 end, tighten the swivel nut on the elbow end
before you tighten the nut on the straight end of the hose.
For more hydraulic hose information, refer to the Toro Basics Series Training
Book Hydraulic Hose Servicing (Part No. 94813SL).
WARNING
5–12).
Page 5–11
Installing the
Hydraulic System: General Information