Grip assistant who oils tracks, lubricates equipment, and maintains smooth motion — invisible work, absolute necessity for dolly and crane shots.
Greaser
The Greaser keeps the nervous system of a dolly track running. While the focus puller and camera operator get the attention, this grip assistant lubricates the rails, oils bearings, and ensures that even the subtlest movement goes smoothly — without jolts, squeaks, or friction losses that would be noticeable in the final motion quality. During long shoots with repeated takes on the same travel paths, this work becomes a routine mission: checking tracks, removing dirt, replenishing lubricant.
In practical terms, this means: The Greaser works closely with the Key Grip and the Dolly Operator. Before a complex move — such as a long tracking shot over several meters or a crane movement where precision is critical — they check all moving parts. They use specialized lubricants (varying depending on the material and weather) to minimize friction without lubricant dripping onto the camera, gaffer equipment, or actors. On location shoots, they are also the first to wipe away moisture in the morning or scrape sand out of the guide rails. In studio shoots in air-conditioned environments, things run cleaner, but are no less important.
The Greaser's accuracy directly impacts the technical cleanliness of the shot. A greasy track leads to minimal vibrations that become immediately visible in 4K or with extreme zoom. An experienced Greaser also knows the balance: too little lubricant creates resistance, too much attracts dust and becomes a trap. Especially with Steadicam setups, where the cameraman relies on absolutely smooth starting conditions, track preparation plays an underestimated role.
On large productions, the Greaser is often specialized — there are people who only know dolly tracks, others who focus on crane and jib work. Their invisibility is their success: if no one is talking about the track, the Greaser has done their job perfectly.