JLG 600SC_660SJC Service Manual - Manual (Page 63)

SECTION 4 - CAT CHASSIS (PRIOR TO S/N 0300128000)
3121157 – JLG Lift – 4-1
SECTION 4. CAT CHASSIS (PRIOR TO S/N 0300128000)
4.1 DUO-CONE CONVENTIONAL SEALS
Installation
When the Duo-Cone Seals are installed and assembled,
you must use the correct procedures. The Duo-Cone Seal
may fail from one or more mistakes that are made during
assembly or during installation of the seal components.
Assembly and Installation
AVOID PROLONGED SKIN CONTACT WITH ISOPROPYL ALCOHOL.
AVOID BREATHING THE VAPORS IN ENCLOSED AREAS WITHOUT
ADEQUATE VENTILATION AND DO NOT SMOKE.
ISOPROPYL ALCOHOL IS FLAMMABLE. DO NOT USE NEAR OPEN
FLAME, WELDING OPERATIONS, OR AROUND HEATED SUR-
FACES EXCEEDING 482°C (900°F).
1. Remove any film, dust or other foreign matter from
the following components:
a. Rubber toric ring (2)
b. Housing ramp (4)
c. Seal ring ramp (7)
d. Housing retaining lip (3)
e. Seal ring retaining lip (8)
f. Seal ring housing (5)
NOTE: Seal rings have very sharp edges. Protective gloves
should be worn in order to prevent injury.
Use the cleaning agents in Tooling (B) or use isopro-
pyl alcohol or other approved cleaning agents. Use
a clean lint free cloth for wiping. All components
should be completely dry before proceeding.
NOTE: Never permit oil to contact rubber toric ring (2), hous-
ing ramp (4) or seal ring ramp (7) before both seal
rings (1) are assembled in the final position.
2. Put rubber toric ring (2) on seal ring (1). Make sure
that the rubber toric ring is positioned at the bottom
of seal ring ramp (7). The rubber toric ring must rest
against retaining lip (8). The rubber toric ring must
be straight in the seal ring. The rubber toric ring
must not be twisted.
Table 4-1. Duo-Cone Required Tools - Installation
Required Tools
Tool Part Number Part Description Qty.
A 6V-3075 Dial Indicator 1
6V-6167 Contact Point 1
3P-1565 Collet Assembly 1
165-8958 Dial Indicator Base 1
B 169-0503 Installation Kit 1
Figure 4-1. Correct Assembly of Conventional Duo-
Cone Seals