KEENAN
MechFiber350 and 370 Operator’s Manual
23
Revision D01 21
st
May 2019
8 Maintenance
The KEENAN MechFiber mixer wagon has been designed for optimum performance with
minimal maintenance. Chains, bearings and grease points have been kept to a minimum
without compromising function. All components are high-quality and provide excellent
durability. Regular, routine maintenance will ensure your KEENAN MechFiber mixer wagon
gives you the best results with minimal problems.
WARNING:
Prior to carrying out any maintenance on the machine, always ensure that
the tractor engine is stopped, and disconnect the P.T.O. and hydraulic hoses
from the tractor. Observe safety precautions at all times when working on
machine. Read the safety section (Section 5) before attempting to work on
the machine.
The recommended operating pressure in the hydraulic circuit is 170 bar and a flow rate of 40
litres per minute. Replacement hoses should comply with DIN EN 853. When replacing
hydraulic hoses, always wear suitable protective equipment.
8.1 Chains
1.
Each week, check the condition of the chain tension arms and adjust as required. There
are two chains used on the KEENAN MechFiber model. The primary drive chain
(ASA120) drives the auger shaft, and the secondary chain (ASA160SH) drives the rotor
(see Figure 9). Both chains are tensioned by spring assemblies on the slack side of the
chain.
Note: The ASA120 chain uses split pins in the joiner link (as
shown), while the ASA160SH chain uses roll pins, due to the
high loads involved.
Figure 9: Chain joiner link
2.
Each day, check the level of oil in the automatic oiler reservoir (where fitted). If the oil
level is low, top it up with light oil, grade SAE 10 or similar. The capacity of the reservoir
is
1.89 litres.
Note:
A: Do not use heavy/high-viscosity oil, as the back pressure in the pipes may cause
them to blow out.
B: Do not use grease on the chains, as it is unsuitable for the application and will not
allow lubrication of the vital internal parts of the chain.
