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Pelco Manual C373M-F (10/98) 13
Figure 6. Servicing the Pan/Tilt
6.0 MAINTENANCE
Inspect the pan/tilt unit every six months to ensure trouble-free operation and an
extended product life. Harsh environments and/or continuous motion applications
may require more frequent maintenance.
Please read all of the instructions that follow before servicing the pan/tilt.
To begin, remove the three screws on the front of the pan/tilt housing and lift the
cover to gain access to the pan and tilt motor assemblies.
6.1 TIGHTENING DRIVE CHAINS
Check the pan and tilt drive chains for tension. A movement of 1/32 of an inch to 3/32
of an inch in the chains is acceptable. If the movement of a chain exceeds 3/32 of an
inch, adjust the chain as follows:
1. Loosen the screws securing the motor to the mounting frame.
2. Pry on the motor to apply tension to the chain. Do not over-tension the drive
chain.
3. Keep tension on the chain while tightening the screws.
6.2 CHAIN DRIVE LUBRICATION
Sprockets, chains, and gears should be well greased. If necessary, lubricate the
pan and tilt gears, sprockets, and chains as follows with a high-quality grease ca-
pable of withstanding temperatures from -50° to 170°F (-46° to 77°C). Do the fol-
lowing:
1. Liberally apply grease to the pan and tilt gears, chains, and sprockets (refer to
Figure 6).
2. Operate the pan and tilt motors to spread the grease across the parts.
3. Apply additional grease if necessary.
4. Reinstall the cover. If the pan/tilt is installed outdoors in an inverted position,
apply RTV silicone sealant as shown in Figure 1.