maintenance instructions
Model SEC 180
page 14 of 16
JARVIS
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457–4926
UNITED STATES OF AMERICA
TEL. 860–347–7271 FAX. 860–347–6978
6204012::.
4 CIRCULAR BLADE INSTALLATION:
4.1 Reverse steps and procedures outlined in section
3. See notes below. Refer to Figure 3 below as
a guide.
4.1.1 To ensure proper fit and safe operation, the
notches on the saw blade (item 8) must align
with dowels pins (item 16) and the center
hole of the blade must fit securely on the lip
of the crown gear (item 17).
4.1.2 The holes in retaining washer (item 7) must
align with the dowel pins (item 16) on the
crown gear (item 17).
4.1.3 The teeth at the bottom of the blade should
point toward the operator and rotate count-
er–clockwise. Refer to Figure 3 below for
blade rotation direction.
4.1.4 Tighten blade retaining screws with Jarvis
wrench 8039146. Prevent blade from turn-
ing by inserting blade locking pin (item 50)
through one of the outer holes in blade.
Figure 3
SAW BLADE
RETAINING
WASHER
SCREWS
CROWN GEAR
DOWEL
PINS (4)
HOLES
(4 PLACES)
FOR PINS
LIP
NOTCHED
AREA (4 PLACES)
OUTER
HOLE
Blade Installation
SAW BLADE
ROTATION DIRECTION
5 RIGHT ANGLE GEAR HOUSING DISASSEM-
BLY:
5.1 Remove blade as described in section 3.
5.2 Remove flat head screws (item 49) and remove
blade guard (item 9).
5.3 Remove cheese head screws (item 22) and re-
move right angle gear housing assembly from
motor assembly.
5.3.1 Place the gear housing assembly on a clean
work surface.
5.4 Remove flat head screws (item 11), gear hous-
ing cover (item 12), o–ring (item 13), shaft seal
(item 14) and slinger (item 10) from gear hous-
ing.
5.5 Lightly tap the gear housing on the guard mount-
ing area with a nylon mallet until the crown gear
assembly (items 15–19) slides out of the gear
housing.
5.6 Place crown gear (item 17) in an arbor press and
remove ball bearing (item 15). Place a 7 mm pin
in the threaded hole of the gear and press gear
shaft and ball bearing (items 18 and 19) from
crown gear. Press gear shaft (item 18) out of ball
bearing (item
19
).
5.7 Remove oval head screws (item 30).
5.8 Lightly tap the gear housing in the face mount-
ing area with a nylon mallet until the pinion gear
assembly (items 24–33) slides out of the gear
housing.
Note: Never use a metal hammer on the gear housing or
place it in a vise. The mounting faces are precisely ma-
chined and must not be damaged.
5.9 Grip the pinion gear shaft in a vise using soft
jaws only. See note below.
Note: Never grip the pinion gear on the gear teeth or
bearing mounting diameters. Grip only the shaft portion
with enough force to keep it from rotating when removing
the flat head screw.
5.10 Remove flat head screw (item 33) and washer
(item 32).
5.11 Remove helical gear (item 31), shaft key
(item
25) and bearing retaining washer
(item 29).
