KEENAN
MechFiber400 Operator’s Manual
Revision G02 28
th
Sept 2020
24
2.
Each day check the level of the oil reservoir (see Figure 8a). Ensure that the machine
is level before checking. The oil level should be between the 2 indicator marks on the
dip stick. The top indicator represents 70 litres of oil (recommended) and the lower
indicator represents 50 litres (minimum). If the oil level is low, top it up with chainbar oil
(the properties of which allow it cling to the chains longer).
Use Total/Finol Chainac MP, if available, or a suitable equivalent, with a volumetric mass
of 879 kg/m3 at 15° C and a viscosity rating of 150 mm2/s at 40° C.
Do not use grease on the chains, as it is unsuitable for the application and will not allow
for the lubrication of the vital internal parts of the chain.
3.
Over the lifetime of the machine, the drive chains will extend slightly over time. To
combat this issue as per the image above, all KEENAN machines are fitted with chain
tensioners on the slack side of the chain. The primary and secondary chain tensioners
comprise of a pivoting tension arm connected to a tension spring and adjusted via a
threaded bolt passing through a shoulder plate. The rotor chain tensioner comprises of
a pivoting tension arm connected to a compression spring and adjusted via a second
pivoting arm with locating bolt holes. The auger chain tensioner comprises of a pivoting
tension arm connected to a compression spring via a pull rod and adjusted via a
threaded spring seat on the end of this rod. In order to prevent the chain jumping and
premature wear the chain must be held at the correct preload tension at all times and
should be checked weekly.
Figure 8b: KEENAN MechFiber400 drive system
Primary drive chain
Rotor drive chain
Auger drive chain
Adjuster “D”
Adjuster “A”
Adjuster “C”
Adjuster “B”
Secondary drive chain
Oil level when at rest
