V-Belt Tensioning; Additional Servicing; Abrasives; Selecting Abrasives - Jet JSG-233A-M Gebrauchsanleitung

Figure 10‐4: Remove the V‐belt guard
Figure 10‐5: Remove the V‐belt guard .
Figure 10‐6: Install a new V‐belt.
Tension the V‐belt (see chapter 10.3)
Install the V‐belt guard, the sanding disc plate and
the disc guard.
The machine may only be
operated with the protective covers installed.
10.3 V‐belt tensioning
Place the belt arm in a vertical position.
Loosen the nut (33, Fig. 10‐1) and adjust the V‐belt
tension with the screw (32). Turning screw clockwise
(+) tensions the V‐belt.
After adjusting the belt correctly, tighten the nut
(33).
Figure 10‐1: V‐belt tensioning
All protective covers must be reinstalled after the
correct setting !
10.4 Additional servicing
Any additional servicing should be performed by an
authorized service technician.
11.0 Abrasives
The abrasive material you choose will have a
substantial effect on the performance of your sander.
Variations in paper type, weight, coating and
durability all contribute to achieving your desired
finish.
11.1 Selecting abrasives
It is important to select the proper grit of abrasive for
the type of sanding being performed to achieve
maximum results. As with any sanding operation, first
begin sanding with a coarser grit, depending upon
the roughness of the stock or the amount of stock to
be removed. Then progressively work toward finer
grits. The chart below (table 2) shows the general
uses for the various grits.
The amount of stock to be removed is a major
consideration when choosing the grit grade with
which to begin. Grits 36, 50 and 60 are primarily
designed for stock removal. Grits from 120 through
220 are primarily finishing grits.
In general, premium quality abrasives will produce a
better finish with a less noticeable scratch pattern.
Note: Grits that are too fine can sometimes burnish
the wood and leave a glossy surface which will not
accept stains evenly. This will vary by type of wood.
Oak, for example, is susceptible to burnishing
because of its open pores.
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