maintenance instructions
page 12 of 16
Model SEC 180--2, 230--2 and 280--2
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::
®
4.2.5 Remove (3) flat head slotted screws (item
82) and remove gear housing cover (item
81) from gear housing (item 73).
4.2.6 Remove oil seal (item 80), if necessary.
4.2.7 Place gear housing assembly on a clean
work surface.
4.2.8 Lightly tap gear housing in guard mounting
area with a nylon mallet until crown gear
shaft (item 76), ball bearings (item 74 and
78), keys (item 77), retaining rings (item 50
and 79) and crown gear (item 75) slide out
of gear housing (item 73).
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.
4.2.9 Remove retaining ring (item 79).
4.2.10 Remove ball bearings (items 74 and 78).
Use proper tool to remove bearings.
4.2.11 Remove retaining ring (item 50) from
crown gear shaft (item 76).
4.2.12 Using an 11 mm pin, press crown gear (item
75) and keys (item 77) from crown gear
shaft (item 76).
4.2.13 Lightly tap shaft housing (item 66) on motor
end with a nylon mallet to separate brake as-
sembly (items 8--15, 18, 20, 21 and 67--69)
from pinion gear shaft (item 58).
Note: Never use a metal hammer on the shaft housing or
place it in a vise. The mounting faces are precisely ma-
chined and must not be damaged.
4.2.14 Remove key (item 3) from either pinion
gear shaft (item 58) or planetary carrier hub
(item 69), wherever key is located.
4.2.15 Remove (3) retaining rings (item 14), (3)
thrust washers (item 13) and (3) planetary
idler gears (item 68) from planetary gear
shafts (item 12).
4.2.16 While holding the flats behind the teeth on
pinion gear (item 58), remove socket head
cap screw (item 11).
4.2.17 Remove hub retaining washer (item 67).
4.2.18 Remove planetary gear shafts (item 12)
from planetary carrier hub (item 69) only if
shafts exhibit excessive wear or scoring.
4.2.19 Loosen cheese head screws (item 18) with
split lock washers (item 10) until brake
shoes (item 21) drop off cheese head screws
(item 18).
4.2.20 Lift compression springs (item 9) and brake
shoes (item 21) from dowel pins (item 20).
4.2.21 Remove compression springs (item 9) from
brake shoes (item 21).
4.2.22 Remove (3) cheese head screws (item 18)
and separate brake cover (item 8) from plan-
etary hub carrier (item 69).
4.2.23 Remove oil seal (item 22) and ring gear
(item 70) from shaft housing (item 66).
4.2.24 Remove (3) flat head slotted screws (item
23) securing brake drum (item 7) to shaft
housing (item 66).
4.2.25 Remove brake drum (item 7) with oil seal
(item 24).
4.2.26 Slide pinion gear (item 58), ball bearing
(item 59) and retaining rings (item 60) from
shaft housing (item 66).
4.2.27 Remove (2) retaining rings (item 60) from
pinion gear (item 58).
4.2.28 Press ball bearing (item 59) off pinion gear
(item 58).
4.2.29 Slip ball bearing (item 71) out of shaft hous-
ing (item 66).
4.2.30 If necessary, unthread flange nut (item 61)
from shaft housing (item 66) to remove
flange plate (item 62).
4.2.31 Inspect all parts for wear and replace if nec-
essary.
5 GEAR HOUSING ASSEMBLY:
5.1 Model 180--2.
5.1.1 Reverse steps and procedures outlined in
section 4.1.
See special notes below.
