Jet HBS-1321W WMH, Operating And Parts Manual, Page: 13 / 24

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To change gear box lubricant:
1. Disconnect machine from the power
source.
2. Remove drain plug and allow lubricant to
drain completely. The drain plug is located
on lower front of gear case under right
wheel cover. Remove drain plug with a hex
wrench.
3. Reinstall drain plug.
4. Remove filler cap and fill gearbox with Mobil
SHC 634 until level reaches dot in middle of
sight glass.
5. Reinstall
filler cap.
6. Use Mobil DTE

Oil Heavy Medium to
lubricate all other moving parts as needed.
Hydraulic Pump
If you need to add hydraulic fluid to the tank
remove cap (A, Fig. 13). Add Mobil DTE

24
until the black ball floats to the full position.
Coolant Pump
The coolant tank should be filled with 6 gallons
of a cutting coolant. Fill by pouring coolant into
the chip tray. Add coolant in the same manner
when coolant is low. To drain coolant remove
hex cap screw (A, Fig. 14). Follow all coolant
manufacturer’s instructions for safety, mixing
disposal, etc.
The spray nozzle (B, Fig. 14) enables the user
to wash chips out of the way. There are three
ball valves that control the coolant distribution to
the spray nozzle and each blade guide.
Replacing the Variable Speed Belt
Disconnect the machine from the power source.
Take the belt cover off by removing the knob
and washer. Loosen tension on the belt by
turning the variable speed dial (A, Fig. 15) to the
lowest setting. This will allow you to remove the
belt (B, Fig. 15). When installing the new belt
turn the pulley by hand while increasing variable
speed dial setting. After running the machine
additional adjustment of the variable speed dial
may be needed.