1-9. DIFFERENCES BETWEEN MODELS (Cont).
M689 utilizes a quick-release feature that allows drawbar to be used to position both front and rear dolly
M832 and M840 utilize a positioning bar to position rear dolly to shelter.
The new M832 (SN J089-001 thru 159 and JO1 7-160 thru 350) has several improvements.
(1) Lifting and tiedown provisions have been added.
(2) Two caster assemblies help in maneuvering the uncoupled dolly halves into thedesired position.
(3) The hydraulic system has been improved with an external release valve, an increased system
capacity, and boots on the hydraulic cylinders to prevent rust.
M832 (Except SN J088-001 thru 159
and J017-160 thru 350)
M832 (SN J068-001 thru 159 and
J017-160 thru 350 only)