Truck Locks and Trolley Brakes

All truck locks are top plate mounted and bolted to the underside of the trolley. The principle on which they work requires a constant gap between the unit and the floor, so it is best to mount the truck lock close to a castor, ensuring that it does not interfere with the free movement and operation of the castor.

A step down foot-operated pedal moves a skid-resistant rubber pad into friction contact with the floor surface. This is done with a spring-loaded over-cam mechanism that does not lift the load and keeps the operating force low. It also means the load rating of the trolley is not relevant to the truck lock. A second step down pedal raises the footpad. The limited number of parts means there is less to maintain or go wrong.

Where a trolley has four swivel castors, two truck locks are required – one to be fitted at each end, either on the same side or diagonally opposite. Only one truck lock is required at the swivel end of a trolley that has two swivel and two fixed castors.

Quick Differences between the two models of Truck Locks from Merlin

Product Code	Extended Height mm	Retracted Height mm	Top Plate Size mm
CDFLN-4	151	125	120 X 120
CDFLN-5	180	154	120 X 120
CDFLN-6	210	170	120 X 120
CDFLN-8	255	215	120 X 120
BZTL1	168	136	152 x 114
BZTL2	195	155	152 x 114
BZTL3	245	205	152 x 114
BZTL4	205	170	152 x 114
BZTL5	151	125	120 x 120
BZTL6	210	170	120 x 120

BZTL7L is a left hand or right-hand side way operated roll lock which is comprised of a pressed steel construction, with rubber foot pads of 80 mm diameter.

Fully extended height 381 mm and retracted height 346 mm, the Main lever extends out 228 mm, plate size 165 mm a 114 mm and with a blank plate so hole centres can be drilled at the site to match your requirements.

Close up images of the lowered and raised positions.

 

Parking/Prop Jacks are a new range of high-quality jacks and are designed to hold loads up to 4000 kg.
The main jack body is supplied un-plated for welding directly to your units before painting.
Depending on the model, they are available with a side-winding or top winding handle and either round or square base plates with a maximum stroke of 450 mm.