maintenance instructions
Model SEC 180--2, 230--2 and 280--2
page 11 of 16
JARVIS
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL. [email protected]
TEL. 860-347-7271 FAX. 860-347-6978 www.jarvisproducts.com
6204015::
®
4.1.3 Separate gear housing assembly from motor
assembly.
4.1.4 Place gear housing assembly on a clean
work surface.
4.1.5 While holding the flats on the crown gear
shaft (item 36), remove socket head cap
screw (item 11).
4.1.6 Lightly tap gear housing (item 30) with a
nylon mallet until planetary carrier hub and
brake assembly slide out of 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.
4.1.7 Remove retaining rings (item 14), thrust
washers (item 13) and planetary idler gears
(item 16) from planetary gear shafts (item
12).
4.1.8 Remove hub retaining washer (item 17).
4.1.9 Remove planetary gear shafts (item 12)
from planetary carrier hub only if shafts ex-
hibit excessive wear or scoring.
4.1.10 Loosen (3) cheese head screws (item 18)
with split lock washers (item 10) until brake
shoes (item 21) drop off cheese head screws
(item 18).
4.1.11 Lift compression springs (item 9) and brake
shoes (item 21) from dowel pins (item 20).
4.1.12 Remove compression springs (item 9) from
brake shoes (item 21).
4.1.13 Remove (3) cheese head screws (item 18)
and separate brake cover (item 8) from plan-
etary carrier hub (item 19).
4.1.14 Remove oil seal (item 22) and ring gear
(item 1) from gear housing (item 30).
4.1.15 Remove (3) flat head slotted screws (item
23) securing brake drum (item 7) to gear
housing (item 30).
4.1.16 Remove brake drum (item 7).
4.1.17 Remove retaining ring (item 25).
4.1.18 Slide pinion gear (item 2) with ball bearings
(items 4 and 6) and spacer (item 5) out of
gear housing (item 30).
4.1.19 Remove ball bearings (items 4 and 6) from
pinion gear (item 2).
Use proper tool to re-
move bearings.
4.1.20 Remove (3) cheese head screws (item 49)
securing gear housing cover (item 40) to
gear housing (item 30).
4.1.21 Remove gear housing cover (item 40).
4.1.22 Remove oil seal (item 39), if necessary.
4.1.23 Lightly tap gear housing (item 30) on back
of guard with a nylon mallet until crown
gear shaft (item 36), ball bearings (items 37
and 51), key (item 35), retaining rings (item
14, 38 and 50) and crown gear (item 34)
slide out of gear housing (item 30).
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.
4.1.24 Remove retaining rings (item 14 and 38).
4.1.25 Press ball bearings (item 37 and 51) off
crown gear shaft (item 36).
4.1.26 Remove retaining ring (item 50) from
crown gear shaft (item 36).
4.1.27 Using an 11 mm pin, press crown gear (item
34) and key (item 35) off crown gear shaft
(item 36).
4.1.28 Inspect all parts for wear and replace if nec-
essary.
4.2 Models SEC 230--2 and SEC 280--2.
4.2.1 Remove blade as described in section 2.3.
4.2.2 Remove (2) hex head screws (item 63) and
remove blade guard (item 88) and blade
guard gasket (item 83) from gear housing
(item 73).
4.2.3 Remove (2) hex head screws (item 63) se-
curing flange plate (item 62) to gear housing
(item 73).
4.2.4 Separate gear housing assembly from shaft
housing assembly.
