General Information
2
SERVICING OF HYDRAULIC POWER UNIT
Only routine maintenance and general service in-
structions are provided in this manual. For service
of the hydraulic power unit during the limited warran-
ty period, contact your authorized Walker dealer.
Any unauthorized work done on the hydraulic
power unit during the warranty period may void the
warranty. If you have any difculty nding an autho-
rized outlet or obtaining warranty service, please
contact our Service Department for assistance:
Walker Manufacturing Company
5925 E. Harmony Road
Fort Collins, CO 80528
1-970-221-5614
www.walker.com
UNIT DESCRIPTION
With the optional Hi-Dump
®
kit installed, the opera-
tor raises and dumps the GHS catcher box while
seated in the seat. Two toggle switches operate
independent hydraulic cylinders to raise, lower and
dump the catcher. The back door automatically
opens and closes during the dump cycle. The catch-
er may be dumped at any raised position (Normal
Operating-Intermediate-Fully Raised).
CONFIGURATION NOTE
When Hi-Dump
®
is installed, the optional single
wide tail wheel (P/N 8049) on the tractor is not rec-
ommended due to tail weight and extra turning resis-
tance. Use the standard dual tail wheel (P/N 7420-
20).
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