GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
TAGGING WIRES AND HOSES - CONTINUED
Whenever possible, identify electrical wires with the number of the terminal or wire to which it connects. If no markings
can be found, tag both wires or wire and terminal, and use the same identifying mark for both. If you cannot tag a wire
because it must fit through a small hole or you cannot reach it, write down the description of the wire and the point to
which it connects or draw a simple diagram on paper. Be sure to write down enough information so you will be able to
properly connect the wires during assembly. If you need to identify a loose wire, look for an identifying number near
end of the wire, stamped on a permanent metal tag. Compare the number to wire numbers on the appropriate electrical
Identify fuel, oil, coolant, and hydraulic lines when you are taking off more than one line at the same time. Mark tags
with points to which lines and hoses must be connected. If it is not obvious which end of a line goes where, tag each end
of the line.
Identify and tag other parts as required by name and installed location.
LINES AND PORTS
To keep dirt from contaminating fluid systems when removing and installing fuel, oil, coolant, and hydraulic lines, per-
form the following steps:
Clean fittings and surrounding area before disconnecting lines.
Cover, Cap Set, Protective (Item 5, WP 0290 00) or tape lines and ports after disconnecting lines. When these are
not available, use plastic bags and rubber bands, clean Rag, Wiping (Item 30, WP 0290 00), Tape, Duct (Item 39,
WP 0290 00)or other similar materials
to prevent dirt from entering system.
Ensure new and used parts are clean before installing.
Wait to remove cover, cap, plug, or tape from lines and ports until just before installing lines.
HYDRAULIC HOSE CONNECTION PROCEDURES
Always use new O-rings where applicable. O-rings should always be installed wet. Coat O-ring with Oil, Lubricating,
Tables 1 through 4 identify and cross reference various O-rings found on the RTCH by dimensions and part numbers.
These O-rings are available in a kit. The complete O-ring kit, part number 12J1037, NSN 5330-01-529-0690, is avail-
able from: Kalmar RT Center LLC, 103 Guadalupe Drive, Cibolo, TX 78108, Tel. 1-800-558-7232, 1-210-599-3478,
Table 1. Boss Type O-Rings.
QTY PER KIT
(I.D. x W)
0.351 x .072
0.468 x .078
0.644 x .087
0.755 x .097
0.924 x .116
1.171 x 0.116
1.475 x 0.118
1.720 x 0.118
2.337 x 0.118