5-17
RT9150E OPERATOR MANUAL LUBRICATION
Published 2-23-2017, Control # 644-00
Item
Lube Point
Description
Figure No.
Approved
Lubricant
Lube
Capacity
Lube Interval Application
Hydraulic
40 Hydraulic Tank Figure 5-6
HYDO
Hydraulic Oil
6829006444
6829101559
655 liters
(173
gallons)
Check fluid level
every 10 hours or
daily.
• Use sight gauge on
side of tank, with
boom down and all
outrigger cylinders
retracted.
• Drain and refill as
necessary
NOTE:
• Environmental and other conditions can dramatically affect the condition of hydraulic oil and filters. Therefore,
specific intervals for servicing/changing hydraulic oil, filters and hydraulic tank breathers cannot be set.
However, it is imperative for the continued satisfactory performance of Grove cranes that inspections be
performed on the basis of how and where each crane is used. Air borne and ingested contaminants can
significantly reduce the life of oil and the condition of hydraulic oil filters and tank breathers.
• Under normal operating conditions, it is recommended that hydraulic oil, filters and breathers be inspected
and oils sampled at least every 3 to 6 months and more frequently for severe operating conditions. The
inspections should be for air borne and/or ingested particles and water that deteriorate and contaminate the
oil (e.g., oil appears “milky” or no longer has a transparent clear to amber color). The return filter by-pass
indicator should be observed daily to determine if the contaminants content may be high. If the indicator
reaches the red zone or indicates a by-pass condition, the hydraulic oil must be sampled. The hydraulic tank
breather should also be inspected to assure that it is not restricting air flow into and out of the reservoir.
• To inspect hydraulic oil, fill a small glass container with a sample of reservoir oil and another glass container
with fresh oil. Let the samples stand, undisturbed, for one to two hours and then compare the samples. If the
reservoir oil is heavily contaminated with water the sample will appear “milky” with only a small layer of
transparent oil on top. If the “milky” appearance was due to air foaming, it will dissipate and the oil should
closely match the fresh oil. Should you have any questions, please contact your local authorized Manitowoc
distributor.
• The hydraulic oil shall meet or exceed ISO #4406 class 19/17/14 cleanliness level.
Fill Procedure for Hydraulic Tank (Operation below +5°F (-15 °C)
– Drain existing oil.
– Fill tank with hydraulic/transmission oil (6829101559) and cycle all cylinders
–Drain oil
– Fill tank with oil (6829101559)
41 Hydraulic Filter Figure 5-6 --- ---
Change filter when
the indicator is red
---
Reference Only
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