Michael Lucareli
Analyst · Baird
Good morning. Please turn to Slide 9. First, I want to say that we're pleased with the quarterly sales and earnings growth within our 2 primary industrial segments. Total company sales increased $28 million or 6%, including a negative foreign currency impact. Revenue improved in all business segments this quarter, with the highest rate of growth in the off-highway, data center and commercial HVAC markets.
Gross profit of $92 million was up 7%, and our margin was up 20 basis points. The Building HVAC gross margin was higher than the prior year, and CIS showed a significant improvement as well.
On the VTS side, we had positive impacts from higher sales volume and ongoing purchasing initiatives. However, this was more than offset by higher tariff and tariff-related costs. As Tom described, these costs relate to tariffs on imported materials and large price increases from certain domestic suppliers that are leveraging their current position. We're working hard to recover these cost increases from our VTS customers, but this is proving more difficult than we anticipated.
With regards to CIS and Building HVAC, we are generally able to pass through these cost increases in the normal course of business.
In addition to the material costs, we incurred a number of incremental costs related to rapid volume increases, program launches and a facility expansion. To help offset the material challenges, we continue to tightly manage SG&A. At $57 million, SG&A improved 130 basis points as a percentage of sales. The 6% decrease in SG&A includes a $1.1 million recovery of environmental costs.
Adjusted operating income was $34.8 million, up 29%, due primarily to the gross margin improvement in CIS and Building HVAC segments. The appendix includes an itemized list of adjustments and a full reconciliation to our U.S. GAAP results. These adjustments totaled $1.2 million and relate to strategy consulting fees, restructuring expenses, impairment charges and environmental charges related to previously owned manufacturing facilities.
I also want to point out that we recorded an $8.6 million income tax expense, which is significantly lower than the prior year. Last year, we recorded a significant income tax expense related to U.S. tax reform. In our adjusted taxes and adjusted EPS, we have excluded these impacts. After these adjustments, our effective tax rate was 23% compared to 9% for the same period in the prior year. The low adjusted tax rate in the prior year was due to a Hungary development credit.
And last, our adjusted earnings per share was $0.42, which was up $0.07 or 20% from the prior year.
Turning to Slide 10. Our year-to-date operating cash flow of $67 million benefited from a solid third quarter, which was $31 million. After a slow start in Q1, our free cash flow has improved with third quarter free cash flow of $10 million. Year-to-date free cash flow is $9 million, but we are running below the prior year. Please note that this includes about $15 million of cash spent on restructuring and related activities.
The other large impacts on free cash flow are inventory and capital spending. We are running higher inventory due to program launches and the tariff impact on domestic supply. Year-to-date capital spending is about $4 million higher than last year. Based on the current trends and outlook, we expect our full year free cash flow to remain positive, but we'll finish below the prior year.
Our leverage ratio was 2.2, which is within our target range of 1.5 to 2.5. And as we announced last quarter, our Board authorized a $50 million share repurchase plan. We have purchased 50,000 shares in December at an average price of $11.37. We'll follow our capital allocation strategy and balance share repurchases with our priorities on investments that support diversification and growth. In addition, we remain committed to delevering our balance sheet and keeping the leverage ratio within our targeted range.
Let's turn to Slide 11 with our fiscal 2019 outlook. We adjusted our outlook based on our most recent quarter and the evolving tariff situation. In summary, we tightened our sales and EPS range. In addition, we tightened our adjusted operating income range and reduced the low end by $2 million. With regards to revenue, we are lowering the top end of the range and project sales to be up 3% to 7%. From a VTS perspective, the tariff situation is creating cost challenges within the supply chain that our teams are working through, but it's proving more challenging than we anticipated.
We now expect our adjusted operating income to be in the range of $128 million to $134 million compared with our previous range of $130 million to $140 million. Despite the adjustment, we continue to see year-over-year growth of 7% to 12%.
With regards to other key assumptions, we expect the annual interest expense of approximately $24 million. As usual, we're using current foreign exchange rates. And last, we expect our adjusted tax rate to be approximately 21% to 22% in fiscal '19. Given these factors, we're tightening our adjusted earnings per share range to be between $1.50 and $1.60.
And to wrap up, we're happy with the earnings growth this quarter but anticipate some pressure in our fourth quarter, mostly in the VTS segment. Even with some temporary cost challenges, we have an opportunity to deliver another record year of sales and earnings.
So with that, Tom, I'll turn it back to you.