To assign a Loan approver to an employee, Kindly follow below steps:

Navigate to Payroll ----> Loan/Advance & Savings
Follow below steps:

1. Go to Loan Approver
2. Select the Approver (If there are multiply levels of approvals, select the 1st Level Approver)
3. Click on Edit
Follow below screenshot

4. Select the Employee to assign the Loan approver
5. Click on Add to add the employee to the list of employees under that approver (employees showing on the right side)
6. Save 
Follow below screen shot


7. If there are multiply levels of approvals, repeat step 2-6 for 2nd Level, 3rd Level etc.