The RNLI says six crew members have been brought in from the UK to staff the St Helier station in Jersey.
The charity said the decision to remove coxswain Andy Hibbs was made due to a "serious risk to its ability to run a safe and effective lifesaving service".
Mr Hibbs denies the claim he broke the volunteers' code of conduct.
More on St Helier lifeboat and other Channel Island stories here
The St Helier station was unmanned for the weekend and members of the public attended a silent protest on Sunday.
The charity says the new crew members have come from various parts of the UK, and will remain until the dispute is resolved.

Worst affected is the Abruzzo region, still recovering from a 2009 quake, while towns hit in Marche and Lazio last year are also badly affected.
More than 300,000 people are without power in Abruzzo and traffic has been disrupted in the Marche quake zone.
Three deaths across Italy have been attributed to freezing weather.
A man of 67 was found dead in the street in Ceglie Messapica, Puglia, and a homeless man of 53 was found dead in a square in Canicatti, Sicily.
A man aged 67 died in Giulianova, Abruzzo, after falling from a boat into icy water.
Fabrizio Curcio, head of the country's Civil Defence Department, told Italian radio the harsh weather was expected to last until Thursday night at the earliest.
The temperature in Amatrice, Lazio, where 236 people were killed by the earthquake on 24 August, and Arquata del Tronto, Marche, where 46 died, is set to fall as low as -6C on Tuesday night, with more snow forecast.
That quake left several thousand people homeless, while a further tremor on 30 October put 30,000 out of their homes.
Up to 1.3 metres (4.3ft) of snow is lying on the ground in Marche, where some 20,000 people were without power on Tuesday, the regional authorities said.
Camps for people made homeless by the quakes in Marche region are now closed with most people moved to hotels along the Adriatic coast or into secure houses, flats or container homes, the press office told the BBC on Tuesday.
Meanwhile, buildings made fragile by the tremors are under renewed pressure from the weight of the snow.
Notwithstanding the bad weather, the fire service has been continuing its earthquake recovery work in Norcia, Umbria, another town badly damaged by tremors.
The cold snap continues to affect other parts of Southern Europe. Snow fell in Spain's Balearic islands as well as the east coast city of Valencia.
Weather forecasters said temperatures in the Pyrenees mountains in northern Spain could fall as low as -30C.
A lifeboat station is back in service, four days after 25 volunteers resigned in protest against the sacking of a senior crew member.
[NEXT_CONCEPT]
Central Italy is in the grip of heavy snowfall and very low temperatures, adding to the disruption caused by recent huge earthquakes.