Published 3-30-2018, CTRL 636-05 6-13
CD15 OPERATOR MANUAL MAINTENANCE
Check Hydraulic Oil Level
If the hydraulic oil is consistently low, check for leaks in the
hydraulic system.
1. Be sure the boom is fully retracted and lowered and the
outriggers are retracted and up.
2. Level the crane, engage the parking brake and stop the
engine.
3. Visually check the oil level on the hydraulic oil level sight
gauge (Figure 6-11). The hydraulic oil should be 3 mm
(0.125 in) from the top of the sight gauge. If low, fill tank
with clean recommended hydraulic oil (Section 8).
Service the Air Cleaner
Service the engine air cleaner when the following occurs:
• The engine warning light or the engine stop light comes
on in the gauge cluster on the control console.
• The engine ECM transmits the appropriate fault code.
Service the air cleaner according to the instructions on the
air cleaner.
Service the air cleaner only with the engine shut down. Dirt
and debris can enter the engine and cause damage if the
engine is operated with the air cleaner element removed.
Check Tire Pressure
Check the air pressure in the crane’s four tires. Correct
pressure is 125 psi (9 bar).
Also, check for broken studs, rim damage, loose nuts, cracks
and other tire damage.
8938
Hydraulic Oil Sight Gauge
FIGURE 6-11
Hydraulic Oil
Fill Cap
Fuel Fill
Cap
8937
Air Cleaner Service
Instructions
FIGURE 6-12
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