I want to remove the windshield washer reservoir to make room to work on the brake master cylinder on our '90 Gen I. It looks like the washer reservoir should just lift off the bracket but it doesn't move and I don't want to break the 31-year old plastic reservoir. Is there something else holding the reservoir or should it just lift up off the bracket?

90 LWB RS: 3 L/mt, JBaker springs, bushings, swaybars. KYB shocks tweaked, 134k mi, original owner.
97 LWB SR: SOLD Sep. 2014 131,006 mi: running boards removed, BFG 31x10.5 AT/KO tires, Air locker, AirLifts, KYB shocks, Cibie fogs, 3rd owner.