Jet GHB-1236, Operation And Maintenance Instructions

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5.4 Chuck guard installation
Install chuck guard to headstock, if it is not already
mounted. (See parts breakdown if clarification is
needed for assembly.)
6.0 Lubrication
Lathe must be serviced at all
lubrication points and all reservoirs filled to
operating level before lathe is placed into
service. Failure to comply may cause serious
damage to lathe.
1. Headstock – Oil must be up to indicator mark
in oil sight glass (A, Figure 6-1). Top off with
Mobil DTE

Oil Heavy Medium. Fill by pulling
plug located on top of headstock cover
beneath rubber mat. Drain oil by removing
drain plug (C, Figure 6-2) and refill after first
month of operation. Clean out any metal
shavings. Then, change oil in headstock
annually.
2. External Gears – Coat all gears with a heavy,
non-slinging grease, see Figure 6-2. Do not
get grease on pulleys or belts.
3. Gear Shaft – Remove set screw (F, Figure 8-
2) and oil with a couple drops of Mobil DTE

Oil Heavy Medium once weekly.
4. Gearbox – Oil must be up to indicator mark in
oil sight glass (B, Figure 6-1). Top off with
Mobil DTE

Oil Heavy Medium. Fill by
removing plug (D, Figure 6-2). Drain oil by
removing drain plug (E, Figure 6-2) and refill
after first month of operation. Then, change oil
in gearbox annually.
5. Apron – Oil must be up to indicator mark in oil
sight glass (A, Figure 6-3). Top off with Mobil
DTE

Oil Heavy Medium. Fill by removing oil
plug (B, Figure 6-3). After the first three
months of operation, drain oil completely (drain
is on bottom of apron) and refill with Mobil
DTE

Oil Heavy Medium, or equivalent to the
indicator line. Then, change oil annually.
6. Carriage – Lubricate two ball oilers on top of
carriage once daily with Mobil DTE

Oil Heavy
Medium.
Figure 6-1
Figure 6-2
Figure 6-3