
maintenance instructions
Models SEC 230--4 and 230--4LN
page 15 of 16
PRODUCTS CORPORATION
33 ANDERSON ROAD, MIDDLETOWN, CONNECTICUT 06457-4926
UNITED STATES OF AMERICA E--MAIL.
TEL. 860-347-7271 FAX. 860-347-6978 WWW.
jarvisproducts.com
JARVIS
6204016.
®
4.4 Remove (3) flat head screws (item 8) and re-
move gear head cover (item 9), o-ring (item 10)
and oil seal (item 11) from right angle gear hous-
ing (item 17 or 25).
4.5 Lightly tap right angle gear housing in guard
mounting area with a nylon mallet until bearing
assembly (items 12-16) slides out of right angle
gear housing.
4.6 Remove external retaining ring (item 12).
4.7 Place crown gear (item 15) in arbor press and re-
move ball bearing (item 13). Using a 7 mm pin,
press ball bearing (item 16) from crown gear
(item 15).
4.8 Remove internal retaining ring (item 24) from
right angle gear housing (item 17 or 25).
4.9 Lightly tap end of right angle gear housing (item
17 or 25) with a nylon mallet until pinion gear
(item 21), inner race (item 22) and bearing (item
23) come out of right angle gear housing.
4.10 Place pinion gear (item 21) in arbor press and
remove ball bearing (item 23). If necessary, also
remove inner race (item 22).
4.11 Remove needle bearing (item 20) from right
angle gear housing (item 17 or 25). Jarvis bear-
ing extraction tool, part number 8039083, is
available.
4.12 Remove o--ring (item 19).
4.13 Inspect all parts for wear and replace if neces-
sary.
5 RIGHT ANGLE GEAR HOUSING ASSEMBLY:
5.1 Reverse steps and procedures outlined in section
4. See special notes below.
5.1.1 Jarvis needle bearing assembly tool, part
number 8039091, is available to insert
needle bearing (item 20) into right angle
gear housing (item 17 or 25).
5.1.2 Jarvis inner ring assembly tool, part num-
ber 8039090, is available to assemble inner
race (item 22) onto pinion gear (item 21).
5.1.3 Make sure the bevel end of external retain-
ing ring (item 12) is facing away from
crown gear teeth (item 15). See Figure 3.
6 MOTOR DISASSEMBLY:
6.1 Remove blade as described in section 2.
6.2 Remove right angle gear housing as described in
section 4.
6.3 Remove (4) cheese head screws (item 18), mo-
tor front cover (item 27), o-ring (item 28) and ro-
tor assembly (items 29-32, 39 and 40) from
housing (item 34).
Figure 3
CROWN GEAR
EXTERNAL
RETAINING RING
NOTE BEVEL
DIRECTION
6.4 Place front cover and rotor assembly in arbor
press and press rotor (item 31) and shaft cou-
pling (item 41) from motor front cover (item
27).
6.5 Remove internal retaining ring (item 42).
6.6 Press ball bearing (item 29) from front motor
cover (item 27).
6.7 Place rotor (item 31) in arbor press and press
shaft coupling (item 41) and square key (item
30) from rotor.
6.8 Turn rotor around and press bearing (item 32)
from rotor (item 31).
6.9 Remove o--ring (item 33) from bottom of hous-
ing (item 34).
6.10 Inspect all parts for wear and replace if neces-
sary.
7 MOTOR ASSEMBLY:
7.1 Reverse steps and procedures outline in section
6. See special notes below.
7.1.1 Jarvis rotor and motor cover assembly tool,
part number 8039089, is available to as-
semble rotor and shaft coupling (items 31
and 41) into motor front cover and ball bear-
ing (items 27 and 29).
7.1.2 Make sure the bevel end of internal retain-
ing ring (item 42) is facing toward rotor and
shaft coupling (items 31 and 41). See Fig-
ure 4.
8 REAR HANDLE DISASSEMBLY FOR DC
BRAKE MODELS:
8.1 Remove screws (items 48 and 73).
8.2 Remove rear handle cover (item 94) and gasket
(item 93).