maintenance instructions
Model SEC 180
page 15 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::.
5.12 Place pinion gear assembly in an arbor press and
remove ball bearing (item 28). Remove spacer
(item 27). If necessary, also remove needle
bearing inner race (item 26).
5.13 Remove needle bearing (item 23) from gear
housing. Jarvis tool 8039111 is available. See
Figure G on page 10.
5.14 Remove needle bearing (item 42) from gear
housing. Jarvis tool 8039171 is available. See
Figure G on page 10.
5.15 Clean and inspect all parts for wear and replace
if necessary.
6 RIGHT ANGLE GEAR HOUSING ASSEMBLY:
6.1 Reverse steps steps and procedures outlined in
section 5. See notes below.
6.1.1 Make sure bearing retaining washer
(item 29) is in place before installing helical
gear (item 31).
6.1.2 Use removable thread locking compound
on flat head screw (item 33).
6.1.3 When installing needle bearings always
press on the lip with the part number en-
graved on it. This lip is hardened and will
resist being damaged by the assembly tool.
Installing needle bearings the opposite way
will deform the case and damage the bear-
ing. Jarvis tool 8039170 is available for
installing needle bearing (item 23). See Fig-
ure G on page 10.
7 MOTOR DISASSEMBLY:
7.1 Remove the blade as described in section 3.
7.2 Remove the right angle gear housing as de-
scribed in section 5, steps 5.1–5.3.
7.3 Remove the helical change gear assembly
(items 25, 31 and 44).
7.4 Remove the gasket (item 34).
7.5 Remove the brush covers (item 65) and brushes
(item 66).
7.6 Remove the motor front cover assembly (item
36) and armature assembly (item 58) as a com-
plete unit from motor housing (item 64).
7.7 Remove screws (item 38), washers (item 39 and
5) and front handle (item 37) from the motor
cover (item 36).
7.8 Remove oval head screws (item 40) and remove
the armature shaft assembly from the motor cov-
er.
7.9 Remove bearing retaining washer (item 56).
7.10 Remove the needle bearing (item 42) and thrust
washer (item 41) from motor cover. Jarvis tool
8039140 is available. See Figure G on page 10.
7.11 Remove retaining ring (item 53).
7.12 Using a bearing extractor, remove ball bearings
(items 54 and 59) from the armature shaft.
7.13 Grip the armature assembly (item 58) so as not
to damage it or the windings, and unscrew the
helical pinion gear assembly (item 51) from the
shaft.
Note: Do not remove motor fan (item 57) from armature
shaft. The motor fan (item 57) is integrally balanced
with the armature and should never be removed.
7.14 Remove the fan housing (item 61) from the mo-
tor housing (item 64).
7.15 Remove socket head screws (item 108) and
hanger bracket (item 77).
7.16 Remove oval and pan head screws (items 100
and 85) and rear handle cover (item 90) from
rear handle (item 79).
7.17 Disconnect wiring from motor, switches and
cord.
7.18 Remove brake board (item 102) from circuit
board spacers (item 103).
7.19 Remove cheese head screws (item 104). Re-
move rear handle assembly from motor and set
aside.
7.20 Remove cheese head screws (item 60) and pry
garter springs on motor leads from brush holders
(item 67). Remove stator (item 62) from motor
housing (item 64).
7.21 Remove pan head screws (item 75) and motor
rear cover (item 69).
7.22 Clean and inspect all parts for wear and replace
if necessary.
