weigh down (someone) with work

Translations
обременять (кого-то) работой
The manager tends to weigh down his employees with work before the holidays.
Менеджер склонен обременять своих сотрудников работой перед праздниками.
Definitions
To give someone so much work or so many responsibilities that it becomes difficult for them to manage or cope; to burden someone with excessive tasks.