Bush Hog HDTH8, Operator'S Manual, Page: 115 / 172

HDTH 8 Finish Mower 09/20
Operation Section 4-13
© 2020 Alamo Group Inc.
OPERATION
OPERA
TION
.
Gearbox
• Inspect the gearbox oil level. A low oil level is a warning
sign that the gearbox may be cracked or its seal is
damaged and needs replacement.
• Ensure the gearbox vent is in place and free from
clogs.
To help prevent structural damage
caused by loose hardware, tighten
gearbox mounting bolts as specified. Check the fasten-
ers torque after the first 8 hours of operation and every
50 hours thereafter.
Blades
• Inspect blades and blade bolts for looseness and ex-
cessive wear. Make sure the mower is securely blocked
up before crawling beneath. Replace damaged, worn
and missing blades as complete sets.
Operating the mower with loose
blade hardware will damage the
blade spindle and could result in blade breakage or
blade fastener failure. Broken blades and fasteners can
be thrown out from under the mower a distance of 300
feet. When replacing blades the fastening hardware
must be replaced. Check and retighten the blade hard-
ware after the first 8 hours of operation. In severe cut-
ting conditions, check the blades and fasteners every
50 hours thereafter.
Drive Belt
• Inspect the condition of the drive belts.
• Ensure the driveline shield and drive belt shields are in
place and in good repair.
• Ensure the tractor PTO master shield is in place, low-
ered and in good condition. OPS-R-0064_C
Vent
Plug
Oil Level
Check Plug