Installation - Komatsu 830E Shop Manual

FIGURE 2-3. SUSPENSION INSTALLATION
1. Capscrews & Washers
2. Nuts & Washers
3. Housing
4. Mounting Surface
5. Shear bar
6. If major suspension rebuild is required, continue
removal procedure.
7. Attach fork truck or suitable lifting device to sus-
pension. Secure suspension to lifting device.
®
The front HYDRAIR II suspension weighs approxi-
mately 4900 pounds (2225 kg). Be certain the lifting
device to be used is of sufficient capacity to handle
load.
H2-2
6. Capscrews & Washers
7. Piston
8. Capscrews & Washers
9. Spacer
10. Nuts & Washers
Front Suspensions
8. Remove capscrews and washers (1, Figure 2-3)
and nuts and washers (2).
9. Remove capscrews and washers (8), and nuts
and washers (10).
10. Remove capscrews and washers (6), and spacers
(9).
11. Move suspension to a clean work area for disas-
sembly.

Installation

Use the following procedure for preparing mounting
surfaces and mounting hardware.
1. The mounting surface of both the suspension and
the frame must be clean and dry. Use a cleaning
agent that does not leave a film after evaporation,
such as trichlorethylene, tetrachlorethylene, ace-
tone or lacquer thinner.
When using a cleaning agent, follow the manufac-
turer's instructions for use, proper ventilation and/
or use of breathing apparatus.
2. Inspect suspension and frame mounting surfaces
and spotfaces for flatness. Surface finish must
not exceed 250 (RMS) (medium tool cut). Surface
flatness must be within 0.010 in. (0.254 mm).
3. Clean and dry all capscrews, nuts and washers
as stated in Step 1, above.
NOTE: The use of dry threads in this application is not
recommended. Due to the high tightening forces
required to load these capscrews, dry threads may
cause damage to tools.
4. Lubricate capscrew threads, capscrew head
seats, washer face, and nut seats with a rust pre-
ventive compound. Approved sources are:
•
AMERICAN ANTI-RUST GREASE #3-X from
Standard Oil Division of American Oil Company.
•
RUSTOLENE D grease from Sinclair Oil Com-
pany.
•
GULF NORUST #3 from Gulf Oil Company.
•
RUST BAN 326 from Humble Oil Company.
•
1973 RUSTPROOF from the Texas Company.
•
RUST PREVENTIVE GREASE-CODE 362
from the Southwest Grease and Oil Company.
H02016