Section 4 — Before You Operate… • 29
Spilled hydraulic oil creates slick surfaces and can
cause personnel to slip and/or fall. Keep the unit and
work areas clean.
CAUTION
Injury can result from slipping and falling. Use care
and the handles and steps provided.
4. Visually inspect the unit for hydraulic leaks. Continue
to look for hydraulic leaks while performing the in-
spection.
5. Throughout the inspection, pay particular attention
when inspecting the components included on the
Shift/Monthly Inspection Checklist (refer to the Ap-
pendix).
6. Inspect all covers to make sure they are in place,
secure, and in good condition.
7. Inspect booms for debris or foreign objects.
NOTICE
Safety devices and operational aids must not be
used as a substitute for the exercise of professional
judgment by the operator.
8. Check visual and audible safety devices and opera-
tional aids for proper operation. Replace missing and/
or illegible placards.
9. Start the engine, and engage the PTO.
NOTICE
Do not put the unit in service and run the pump at
normal operating speeds until the hydraulic oil res-
ervoir feels warm to the touch.
10. If the temperature outside is below 32 degrees Fahr-
enheit (0 degrees Celsius), warm the hydraulic oil
before operating the unit. The procedure for warming
the oil is described in this section under Cold Weather
Start-Up. Do not operate the pump or engine at more
than a fast idle until the hydraulic oil has warmed up.
11. Test the outrigger interlock system for units with full
pressure outrigger controls. For units with electro-
hydraulic controls, proceed to step 12.
a. Without engaging the outrigger selector and with
all outriggers fully stowed, place the lower boom
control in the Raise position.
b. If movement occurs, the outrigger interlock system
is not functioning properly. Proceed to step 13.
12. Test the outrigger interlock system for units with
electro-hydraulic controls.
a. Move the outrigger/crane functions selector to the
Crane position.
b. With all outriggers fully stowed, place the lower
boom control in the Raise position.
c. If movement occurs, the outrigger interlock system
is not functioning properly. Proceed to step 14.
13. Test the outriggers for units with full pressure controls.
a. Hold the outriggers selector in the Outriggers
position.
b. Properly set the outriggers. Conrm proper opera-
tion and audible alarm function (refer to Section
6 under Outriggers).
c. Without moving the outrigger selector, hold one
outrigger control in the Raise position while watch-
ing that outrigger for movement.
d. If the outrigger retracts, the cylinder, holding valve,
or crane/outriggers functions selector is not func-
tioning properly.
e. Hold the outrigger control in the Lower position. If
the outrigger extends, the crane/outriggers func-
tions selector is not functioning properly.
f. Repeat this test for each outrigger.
g. Verify the outriggers are properly set and note
how far each outrigger is extended. Proceed to
step 15.
14. Test the outriggers for units with electro-hydraulic
controls.
a. Move the crane/outriggers functions selector to
the Outriggers position.
b. Properly set the outriggers. Conrm proper opera-
tion and audible alarm function (refer to Section
6 under Outriggers).
c. Turn the engine off. Turn the ignition switch to the
On position to provide electrical power to the unit.
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