Cleaners on First Great Western trains are set to strike this week to protest against pay and zero hours contracts.
Those who are sub-contracted by Mitie to clean FGW trains, and who are members of rail union RMT, are set to strike for 24 hours from Friday morning.
Following a vote for action, staff have been instructed not to work between 6am on Friday and 6am on Saturday.
First Great Western operates trains on the Tarka Line between Barnstaple and Exeter.
Earlier this year, Mitie submitted a proposal to FGW to ask for increased rates of pay and staff received a 2% pay increase.
However, Mitie claims other elements of the proposal such as increased sick pay in line with FGW rates, shift and weekend rates, overtime and bank holiday rates, travel facilities on FGW and an end to zero hour contracts were all rejected by the FGW.
Bob Crow, RMT General Secretary, said: “Be clear, this battle is about achieving a Living Wage and ending the scandal of zero hours contracts on a rail franchise which is multi-million pound money-spinner for the private companies bleeding it dry, while those doing the dirty jobs to keep the services clean are treated with pure and utter contempt.
“Only last week First landed a jackpot rollover with a two year contract extension on Great Western that will make them and their sub-contractors a fortune. Justice says that now is the time for the cleaners out there day and night on First Great Western to get their fair share through a Living Wage, decent sick pay and benefits and an end to the evil of zero hours contracts.
Mitie RMT members on First Great Western have shown guts and determination throughout this long fight for workplace and pay justice and we expect strong support from across the labour movement as we move into this phase of industrial action.”