Retorque lift anchor bolts?

[02camaro86]

Anyone with a 2 post lift ever re-torque the anchor bolts? This lift has been install for 5yrs by a Mohawk rep I've never touched the bolts. I'm sure this is a question for the rep. But curious how everyone else feels, or do you just cross your fingers like me .

It's a 1992 model year 9k capacity in approx 6in concrete

 

[FredWanaker]

do they feel loose?

 

[matt_i]

Yes, I would, if they spin then you can install the epoxied anchor that would have been best from the get-go. Bonus points for predrilling completely thru the slab at the start.

 

[jasondavidmann]

Pretty sure I had an installation torque value and a lesser service torque value. Was recommended that I check service torque to 6o ft lbs every month.

* This is for concrete wedge anchors. May be different for other anchor types.

 

[CraigStu]

It can't hurt to check them. I have enough faith in bolts/studs and nuts that I wouldn't worry about them. But w/ the several different methods used to attach them to the concrete, I'd torque them to check the epoxy, wedge anchors, etc.

 

[jpaw]

Yes, they should be retorqued during proper matainance inspections.

 

[pooslet]

Just had a new Mohawk A7 installed. Factory authorized distributor/Installer said to check torque monthly for first six months. Installation of the wedge it anchors (3/4”) was to 150 lbft (I believe) and 75 lb ft re-torque monthly.

 

[road_king]

Taken from my Mohawk System 1A manual for semi annual checks

VERIFY ALL FASTENERS TO PROPER TORQUE:
SWING ARM NUTS TO 1000 FT-LB
CARRIAGE STOP FASTENERS TO 170 FT-LB
CARRIAGE SIDE ROLLER NUTS TO 300 FT-LB
LIFTING ROD NUTS TO 720 FT-LB
CYLINDER TOP BOLT TO 720 FT-LB
ANCHORS (SEE ANCHOR SPECIFICATION SECTION)

 

[mike93lx]

Taken from my Mohawk System 1A manual for semi annual checks

VERIFY ALL FASTENERS TO PROPER TORQUE:
SWING ARM NUTS TO 1000 FT-LB
CARRIAGE STOP FASTENERS TO 170 FT-LB
CARRIAGE SIDE ROLLER NUTS TO 300 FT-LB
LIFTING ROD NUTS TO 720 FT-LB
CYLINDER TOP BOLT TO 720 FT-LB
ANCHORS (SEE ANCHOR SPECIFICATION SECTION)

Lol. 720 ft lbs.

 

[pattenp]

My Challenger lift specs 150 ft lbs on install and 80 ft lbs on maintenance.

 

[SmackinHondas]

I worked at a car dealership that got 4 new scissor lifts installed shortly after I began working there. Because of an oversight, the lifts never got checked by the contract company we had to service our lifts. 2 years after I had been there, we had a scary close call with a 1/2ton truck getting an oil change on one of the scissor lifts.

The nuts holding the base to the floor were loose.

Check yours at a minimum. If they are say, 50ft lbs, I wouldn’t turn them any more because I’d be afraid of spinning hah. I’m sure the spec is higher but I’d hate to dislodge some anchors.