Replacement Part List

TRACKING ADJUSTMENT
WARNING!
Tracking adjustment requires the sander to
be connected to the hose and running. Use
caution when hands and tools are close to a
running belt! Failure to comply may cause
serious injury.
Belt is tracking properly on all models when
centered on the idle pulley.
JSM-606 - no adjustment
JSM-610/612
1.
Loosen set screw with wrench. See
Figure 3.
2. With belt running, turn adjusting screw
clockwise or counter-clockwise until it is
centered on the idler pulley.
3. Tighten set screw.
JSM-620/630
1.
Insert hex wrench into hex socket cap
screw and turn clockwise or counter-
clockwise until belt is centered on idle
pulley. See Figure 4.
BELT REPLACEMENT
JSM-606/610
1.
Disconnect sander from the air source.
2.
Loosen hex cap screw (A - Fig. 2), turn
head 90 degrees to the handle, and
tighten screw to lock. See Figure 5.
3.
Steady the sander with one hand while
pushing down on the idle wheel assembly
with the other until assembly locks in
place. See Figure 5.
4.
Remove old belt. Install new belt.
Be!t movement when
turned counterclockwise
~
.
~'~~I~, movement '",hen
~ed clockwise
/ ~
.
'. ~. ~exagon so,ket headl""
~ ~ set screw
< AdjUS~ ~
C2
.
S
t
~ ~ Clockwise turn
crew '- '.
"-
Counterclockwise turn
JSM-610, JSM-612
Fig. 3
Belt movement
when turned
clockwIse
Belt movement
when turned
counterclock Wise
.",ill' Clockwise
turn
JSM-620, JSM-630
Fig. 4
Fig. 5