GENERAL INSTALLATION INSTRUCTIONS -714670073

TM 5-2420-224-34

GENERAL ASSEMBLY INSTRUCTIONS (CONT)

Pipe Joints. Use sealing compound or thread sealing tape when joining piping.

Gaskets. To provide added sealing for gasket. coat both sides with sealant. Remove all traces

of previous gasket and sealant before installing new gasket.

Silicone Sealant (Sealing Compound).

WARNING

O n direct contact, uncured silicone sealant irritates eyes. In case of contact,

flush eyes with water and seek medical attention. Avoid prolonged contact

with skin.

Silicone sealant is often used instead of a gasket to seal mating parts. Mating parts must be

clean, dry, and free of oil or grease for proper adhesion. After silicone sealant has been

applied, mating parts must be assembled within 15 minutes. Silicone sealant starts to set up

in 15 minutes and takes 24 hours to completely cure. Excess silicone sealant should be

wiped off after assembling mating parts.

Oil Seals. Install oil seals with seal lip facing toward lubricant, applying an even force to outer

edge of seal. Coat oil seals evenly with grease before installing. If oil seals will be installed

over keyed or splined shafts, use a guide. This will prevent sharp edge of keyway or splines

from cutting the leather or neoprene seal. Construct guides of very thin gage sheet metal and

shape to required diameter. However, make certain guide edges are not sharp. Bend them

sightly inward so they do not cut the seal.

Seal Rings. Coat seal rings with oil and carefully install into their bores. If seal rings must be

installed over threaded parts, temporarily wrap the threads with tape to protect the seal ring;

then remove the tape.

Bearings and Shafts. During assembly of shafts and bearings in housings, first mount bearing

on shaft, then install the assembly by applying force to shaft. When mounting bearings on

shafts, always apply force to the inner races of the bearing.

Bearing Lubrication. Lubricate bearings before reassembly with the type of lubricant normally

used in the related housing or container. This will provide lubrication during the first run-in until

lubricant from the system can reach the bearings.

GENERAL INSTALLATION INSTRUCTIONS

1. Preparation. Before installing any parts, make sure they are clean and that both mounting

surfaces are clean and free of oil and grease (unless otherwise noted).

2. Installation. Make sure there is enough clearance to install part. Disassemble adjacent parts as

needed to provide working clearance.

3. Lifting. Always use chain hoist, jack, or other aid when lifting heavy parts. Make certain load

limit of lifting device exceeds weight being lifted. Position and rig lifting device before

connecting part for installation.

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