Alamo BUSH HOG RMB 1660, Operator'S Manual

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OPERATION
RMB 1660 01/22 Operation Section 4-48
© 2022 Alamo Group Inc.
OPERA
T
ION
Problem Possible Cause Remedy
Cylinder Rod Came Out
of Cylinder Piston Nut backed off of
the Rod Improper retaining of nut, replace or rebuild as
required
Relief Valve setting Too
High Test relief valve and adjust or replace as
required
Operator abuse Overloading cylinder in the extend position
Deck Cracks Severe Use or Abuse Excessive ground speed, Overload or impact
with solid objects
Vibration Blades or blade bar bent, or blade missing
Poor or missing welds Manufacturing defect
Mowing over sand or rocks Operator training
Deck Worn On
Underside (Cutting
Head Only) Abusive operation,
mowing heavy debris Operator training
Normal operational wear Normal wear over time can result in cracks or
damage. Check deflectors and guards.
Replace as required.
Hydraulic System Noise
(Squeal) Restrictions to oil flow in
the system Identified by concentration of heat, due to Line
restriction bent hoses or contamination.
Relief Valve Malfunction Relief setting too low, will result in generation of
heat, Adjust or replace as needed.
Cavitation Induction of air into the system due to leakage
Wrong Oil Used Flush and refill as required
Excessive Engine RPM Engine RPM should not exceed 2000 speed as
indicated on the tractor tachometer.
Hydraulic System
Overheating Restriction in Hydraulic
System Identified by a concentration of heat due to
crimped hydraulic line, relief valve failure or
contamination.
Relief Valve Set too low Test and adjust or replace as required
Internal Leakage due to
wear Test pump and motor. Replace or repair as
required
Excessive Pump or Motor
Wear Test pump and motor. Replace or repair as
required
Wrong Oil Flush and refill as required with proper oil
Abusive Operation (Heavy
Material or debris) Operator training
Boom Breaks Back Too
Easily
Cutting head "Plowing" in
Ground
Operator Traveling Too
Fast
Operator Error, Operator Training
Operator Error, Operator Training