JLG 450A_AJ Series II Service Manual - Manual (Page 420)

SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
7-4 – JLG Lift – 3121180
7.3 AMP CONNECTOR
Applying Silicone Dielectric Compound to
AMP Connectors
Silicone Dielectric Compound must be used on AMP
connections for the following reasons:
• To prevent oxidation at mechanical joint between male
and female pins.
• To prevent electrical malfunction caused by low level
conductivity between pins when wet.
Use the following procedure to apply Silicone Dielectric
Compound to electrical connectors.
1. To prevent oxidation and low level conductivity, sili-
cone dielectric grease must be packed completely
around male and female pins on inside of connector
after mating housing to the header. This is easily
achieved by using a syringe to fill the header with sil-
icone dielectric compound, to a point just above top
of male pins inside the header. When assembling
housing to the header, it is possible housing will
become air locked and prevent housing latch from
engaging.
2. Pierce one of the unused wire seals to allow
trapped air inside housing to escape.
3. Install a hole plug into this and/or any unused wire
seal that has silicone dielectric compound escaping
from it.
Assembly
Check wedge lock is in the open, or as-shipped position
(See Figure 7-5.). Proceed as follows:
1. Push contact straight into appropriate circuit cavity
as far as it will go (See Figure 7-7.).
2. Pull contact wire with a force of 1 or 2 lbs. to be sure
retention fingers hold contact (See Figure 7-7.).
Figure 7-5. Connector Assembly Figure 1
Figure 7-6. AMP Connector